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apu math 302 full course [not inluding1 miderm and 1 quiz]

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Question;Week 4 forumSuppose that a class contains 15 boys and 30 girls, and that 10 students are to be selected at random for a special assignment. Find the probability that exactly 3 boys will be selected.To make a post to this week's Challenge Discussion Forum, click on the "Counting isn't always easy" link, then click Post New Thread. In the title block of the dialog box that appears kindly insert your first and last name, compose your post in the message box, and then click Post Message.="msonormal">="msonormal">="msonormal">Week 6 forumSuppose that the percentage annual return you obtain when you invest a dollar in gold or the stock market is dependent on the general state of the national economy as indicated below. For example, the probability that the economy will be in "boom" state is 0.15. In this case, if you invest in the stock market your return is assumed to be 25%, on the other hand if you invest in gold when the economy is in a "boom" state your return will be minus 30%. Likewise for the other possible states of the economy. Note that the sum of the probabilities has to be 1--and is.State of Economy***Probability***MarketReturn***GoldReturnBoom****************0.15************25%*************(-30%)Moderate Growth******0.35************20%***************(-9%)Weak Growth*********0.25*************5%**************35%No Growth***********0.25***********(-14%)**************50%Based on the expected return, would you rather invest your money in the stock market or in gold? Why?To make a post to this week's Challenge Discussion Forum, click on the Decision Alternatives link, then click Post New Thread. In the title block of the dialog box that appears kindly insert your first and last name, compose your post in the message box, and then click Post Message.Week 7 forumSuppose that the demand for a company?s product in weeks 1, 2, and 3 are each normally distributed and the mean demand during each of these three weeks is 50, 45, and 65, respectively. Suppose the standard deviation of the demand during each of these three weeks is known to be 10, 5, and 15, respectively. It turns out that if we can assume that these three demands are probabilistically independent then the total demand for the three week period is also normally distributed. And, the mean demand for the entire three week period is the sum of the individual means. Likewise, the variance of the demand for the entire three week period is the sum of the individual weekly variances. But be careful! The standard deviation of the demand for the entire 3 week period is not the sum of the individual standard deviations. Square roots don?t work that way!Now, suppose that the company currently has 180 units in stock, and it will not be receiving any further shipments from its supplier for at least 3 weeks. What is the probability that the company will run out of units?To make a post to this week's Challenge Discussion Forum, click on the Using the Normal Distribution link, then click Post New Thread. In the title block of the dialog box that appears kindly insert your first and last name, compose your post in the message box, and then click Post Message.Week 10 forumPolitical polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000. Suppose that one such poll asks voters how they feel about the President?s handling of the crisis in the financial markets. The results show that 575 out of the 1280 people polled say they either ?approve? or ?strongly approve? of the President?s handling of this matter. Based on the sample referenced above, find a 95% confidence interval estimate for the proportion of the entire voter population who ?approve? or ?strongly approve? of the President?s handling of the crisis in the financial markets.Now, here?s an interesting twist. If the same sample proportion was found in a sample twice as large?that is, 1150 out of 2560?how would this affect the confidence interval?To make a post to this week's Challenge Discussion Forum, click on the Build a Confidence Interval Estimate link, then click Post New Thread. In the title block of the dialog box that appears kindly insert your first and last name, compose your post in the message box, and then click Post Message.Week 12 forumA new process for producing synthetic diamonds can be operated at a profitable level only if the average weight of the diamonds produced by the process is greater than 0.5 karat. To evaluate the profitability of the process, a sample of six diamonds was generated using this new process, with recorded weights.46,.61,.52,.48,.57, and.54 karat. Do the six measurements present sufficient evidence to indicate that the average weight of the diamonds produced by the new process is in excess of 0.5 karat? To answer this question conduct an appropriate test of hypothesis using the five step process outlined in our textbook and utilized in the solutions to the Chapter 8 review problems, which are posted in the Review Problem Sets Solutions folder in the Resources section of our classroom.To make a post to this week's Challenge Discussion Forum, click on the Testing a Hypothesis link, then click Post New Thread. In the title block of the dialog box that appears kindly insert your first and last name, compose your post in the message box, and then click Post Message.Question 1 of 250.0/ 1.0 PointsFor a boxplot, the vertical line inside the box indicates the location of theA.medianB.modeIn C.meanD.inter quartile rangeAnswer Key:Part 2 of 9 - 2.0/ 2.0 PointsQuestion 2 of 251.0/ 1.0 PointsIf events A and B are mutually exclusive, then the probability of both events occurring simultaneously is equal toA.0.5B.1.0C.any value between 0.5 and 1.0D.0.0Answer Key:Question 3 of 251.0/ 1.0 PointsIf P(A) = P(A|B), then events A and B are said to beA.complementaryB.mutually exclusiveC.exhaustiveD.independentAnswer Key:Part 3 of 9 - 3.0/ 3.0 PointsQuestion 4 of 251.0/ 1.0 PointsSuppose that 50 identical batteries are being tested. After 8 hours of continuous use, assume that a given battery is still operating with a probability of 0.70 and has failed with a probability of 0.30.What is the probability that greater than 40 batteries will last at least 8 hours?A.0.0789B.0.4538C.0.9598D.0.0402Answer Key:Question 5 of 251.0/ 1.0 PointsIf a gambler rolls two dice and gets a sum of 10, he wins $10, and if he gets a sum of three, he wins $20. The cost to play the game is $5. What is the expectation of this game?A.$3.06B.-$2.78C.-$3.06D.$2.78Answer Key:Question 6 of 251.0/ 1.0 PointsThere are two types of random variables, they areA.real and unrealB.exhaustive and mutually exclusiveC.complementary and cumulativeD.discrete and continuousAnswer Key:Part 4 of 9 - 5.0/ 6.0 PointsQuestion 7 of 251.0/ 1.0 PointsThe theorem that states that the sampling distribution of the sample mean is approximately normal when the sample size n is reasonably large is known as the:A.simple random sample theoremB.central tendency theoremC.point estimate theoremD.central limit theoremAnswer Key:Question 8 of 251.0/ 1.0 PointsThe normal distribution is:A.a binomial distribution with only one parameterB.a discrete distributionC.a density function of a discrete random variableD.the single most important distribution in statisticsAnswer Key:Question 9 of 251.0/ 1.0 PointsIf Z is a standard normal random variable, then the value z for which P(-z < Z < z) equals 0.8764 isA.1.16B.0.3764C.1.54D.3.08Answer Key:Question 10 of 251.0/ 1.0 PointsGiven that Z is a standard normal random variable, P(-1.0 28) = 1 ? NORMDIST(28, 25.9, 9.5/SQRT(30), TRUE) = 0.1130Question 4 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.You are told that a random sample of 150 people from Iowa has been given cholesterol tests, and 60 of these people had levels over the ?safe? count of 200. Construct a 95% confidence interval for the population proportion of people in Iowa with cholesterol levels over 200. Place your LOWER limit, rounded to 3 decimal places, in the first blank Correct.322. For example,.678 would be a legitimate entry. Place your UPPER limit, rounded to 3 decimal places, in the second blank Correct.478. For example,.789 would be a legitimate entry.Answer Key:.Question 5 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.Senior management of a consulting services firm is concerned about a growing decline in the firm?s weekly number of billable hours. The firm expects each professional employee to spend at least 40 hours per week on work. In an effort to understand this problem better, management would like to estimate the standard deviation of the number of hours their employees spend on work-related activities in a typical week. Rather than reviewing the records of all the firm?s full-time employees, the management randomly selected a sample of size 51 from the available frame. The sample mean and sample standard deviations were 48.5 and 7.5 hours, respectively.Construct a 95% confidence interval for the standard deviation of the number of hours this firm?s employees spend on work-related activities in a typical week.Place your LOWER limit, in hours, rounded to 1 decimal place, in the first blank. For example, 6.7 would be a legitimate entry. Correct6.3Place your UPPER limit, in hours, rounded to 1 decimal place, in the second blank. For example, 12.3 would be a legitimate entry. Correct9.3Answer Key:Question 6 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.A marketing research consultant hired by Coca-Cola is interested in determining the proportion of customers who favor Coke over other soft drinks. A random sample of 400 consumers was selected from the market under investigation and showed that 53% favored Coca-Cola over other brands.Compute a 95% confidence interval for the true proportion of people who favor Coke. Place your LOWER limit, rounded to 3 decimal places, in the first blank Correct.481. For example,.345 would be a legitimate entry. Place your UPPER limit in the second blank Correct.579. For example,.456 would be a legitimate entry.Answer Key:Question 7 of 200.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the feasibility of providing a dental insurance plan. A random sample of 12 employees reveals the following family dental expenses (in dollars): 115, 370, 250, 593, 540, 225, 177, 425, 318, 182, 275, and 228.Construct a 90% confidence interval estimate for the standard deviation of family dental expenses for all employees of this corporation.Place your LOWER limit, in dollars rounded to 1 decimal place, in the first blank. Do not use a dollar sign, a comma, or any other stray mark. For example, 123.4 would be a legitimate entry. Correct231.5Place your UPPER limit, in dollars rounded to 1 decimal place, in the second blank. Do not use a dollar sign, a comma, or any other stray mark. For example, 567.8 would be a legitimate entry. Correct384.9Answer Key:Part 2 of 3 - 10.0/ 11.0 PointsQuestion 8 of 201.0/ 1.0 PointsIn constructing a confidence interval estimate for a population mean, when we replace f$sigma f$ with the sample standard deviation (s), we introduce a new source of variability and the sampling distribution we use is:A.F- distributionB.the normal distributionC.chi-square distributionCorrect D.t -distributionAnswer Key:Question 9 of 201.0/ 1.0 PointsA food snack manufacturer samples 15 bags of pretzels off the assembly line and weighed their contents. If the sample mean is 10.0 and the sample standard deviation is 0.15, find the 95% confidence interval estimate for the true mean.A.(9.96, 10.04)B.(9.68, 10.32)C.(9.97, 10.80)Correct D.(9.92, 10.08)Answer Key:Question 10 of 201.0/ 1.0 PointsIn a study of elephants a researcher wishes to determine the average weight of a certain subspecies of elephants. From previous studies, the standard deviation of the weights of elephants in this subspecies is known to be 1500 pounds. How many elephants does the researcher need to weigh so that he can be 80% confident that the average weight of elephants in his sample is within 350 pounds of the true average weight for this subspecies?A.50B.39C.166CorrectAnswer Key:Question 11 of 200.0/ 1.0 PointsIf you increase the confidence level, the confidence interval ____________.A.stays the sameB.decreasesC.increasesIncorrect D.may increase or decrease, depending on the sample dataAnswer Key:Question 12 of 201.0/ 1.0 PointsThe average gas mileage of a certain model car is 26 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 1.3, find the probability that a randomly selected car of this model has a gas mileage between 25.8 and 26.3 miles per gallon.Correct A.0.15B.0.85C.0.70D.0.30Answer Key:Question 13 of 201.0/ 1.0 PointsAt a large department store, the average number of years of employment for a cashier is 5.7 with a standard deviation of 1.8 years. If the number of years of employment at this department store is normally distributed, what is the probability that a cashier selected at random has worked at the store for over 10 years?A.0.4916B.0.9916Correct C.0.0084D.0.0054Answer Key:Question 14 of 201.0/ 1.0 PointsIn order to be accepted into a top university, applicants must score within the top 5% on the SAT exam. Given that SAT test scores are normally distributed with a mean of 1000 and a standard deviation of 200, what is the lowest possible score a student needs to qualify for acceptance into the university?Correct A.1330B.1400C.1250D.1100Answer Key:Question 15 of 201.0/ 1.0 PointsFrom a sample of 500 items, 30 were found to be defective. The point estimate of the population proportion defective will be:A.30B.0.60C.16.667Correct D..06Answer KeyQuestion 16 of 201.0/ 1.0 PointsThe upper limit of the 90% confidence interval for the population proportion p, given that n = 100, and f$hat{p}f$ = 0.20 isA.0.4684Correct B.0.2658C.0.5316D.0.7342Answer KeyQuestion 17 of 201.0/ 1.0 PointsWhich of the following will make a confidence interval narrower and more precise?A.Larger sample size and higher confidence levelB.Smaller sample size and lower confidence levelCorrect C.Larger sample size and lower confidence levelD.Smaller sample size and higher confidence levelAnswer KeyQuestion 18 of 201.0/ 1.0 PointsThe t- distribution for developing a confidence interval for a mean has _____ degrees of freedom.A.n - 2B.n + 1Correct C.n - 1D.nAnswer KeyPart 3 of 3 - 2.0/ 2.0 PointsQuestion 19 of 201.0/ 1.0 PointsThe lower limit of the 95% confidence interval for the population proportion p, given that n = 300, and f$hat{p}f$ = 0.10 is 0.1339.CorrectTrueFalseAnswer Key:Question 20 of 201.0/ 1.0 PointsThe upper limit of the 90% confidence interval for the population proportion p, given that n = 100, and f$hat{p}f$ = 0.20 is 0.2341.CorrectTrueFalseAnswer KeyQuestion 1 of 201.0/ 1.0 PointsA severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a storm is in progress with a severe storm class rating. Let us say that we want to set up a statistical test to see if the wave action (i.e., height) is dying down or getting worse. If you wanted to test the hypothesis that the waves are dying down, what would you use for the alternate hypothesis? Is the P-value area on the left, right, or on both sides of the mean?Correct A.H1: \f$\mu \f$ is less than 16.4 feet, the P-value area is on the left of the meanB.H1: \f$\mu \f$ is greater than 16.4 feet, the P-value area is on both sides of the meanC.H1: \f$\mu \f$ is greater than 16.4 feet, the P-value area is on the left of the meanD.H1: \f$\mu \f$ is not equal to 16.4 feet, the P-value area is on the right of the meanAnswer Key:Question 2 of 201.0/ 1.0 PointsA lab technician is tested for her consistency by taking multiple measurements of cholesterol levels from the same blood sample. The target accuracy is a variance in measurements of 1.2 or less. If the lab technician takes 16 measurements and the variance of the measurements in the sample is 2.2, does this provide enough evidence to reject the claim that the lab technician?s accuracy is within the target accuracy?State the null and alternative hypotheses.A.H0: s2? 1.2, H1: s2 = 1.2B.H0: s2 1.2Answer Key:Question 3 of 200.0/ 1.0 PointsA null hypothesis can only be rejected at the 5% significance level if and only if:Incorrect A.the null hypotheses includes sampling errorB.a 95% confidence interval includes the hypothesized value of the parameterC.a 95% confidence interval does not include the hypothesized value of the parameterD.the null hypothesis is biasedAnswer Key:Question 4 of 201.0/ 1.0 PointsThe alternative hypothesis is also known as the:A.optional hypothesisCorrect B.research hypothesisC.null hypothesisD.elective hypothesisAnswer Key:Question 5 of 201.0/ 1.0 PointsThe null and alternative hypotheses divide all possibilities into:A.two sets that overlapB.two sets that may or may not overlapCorrect C.two non-overlapping setsD.as many sets as necessary to cover all possibilitiesAnswer Key:Question 6 of 201.0/ 1.0 PointsA type I error occurs when the:Correct A.null hypothesis is incorrectly rejected when it is trueB.sample mean differs from the population meanC.null hypothesis is incorrectly accepted when it is falseD.test is biasedAnswer Key:Question 7 of 200.0/ 1.0 PointsA lab technician is tested for her consistency by taking multiple measurements of cholesterol levels from the same blood sample. The target accuracy is a variance in measurements of 1.2 or less. If the lab technician takes 16 measurements and the variance of the measurements in the sample is 2.2, does this provide enough evidence to reject the claim that the lab technician?s accuracy is within the target accuracy?At the a =.01 level of significance, what is your conclusion?A.Reject H0. At the \f$\alpha \f$ =.01 level of significance, there is not enough evidence to support the claim that this technician?s true variance is larger than the target accuracy.Incorrect B.Reject H0. At the \f$\alpha \f$ =.01 level of significance, there is enough evidence to support the claim that this technician?s variance is larger than the target accuracy.C.Do not reject H0. At the \f$\alpha \f$ =.01 level of significance there is not sufficient evidence to suggest that this technician?s true variance is greater than the target accuracy.D.Cannot determineAnswer Key:Question 8 of 201.0/ 1.0 PointsSmaller p-values indicate more evidence in support of the:Correct A.alternative hypothesisB.quality of the researcherC.null hypothesisD.the reduction of varianceAnswer Key:Question 9 of 201.0/ 1.0 PointsIn an article appearing in Today?s Health a writer states that the average number of calories in a serving of popcorn is 75. To determine if the average number of calories in a serving of popcorn is different from 75, a nutritionist selected a random sample of 20 servings of popcorn and computed the sample mean number of calories per serving to be 78 with a sample standard deviation of 7.State the null and alternative hypotheses.A.H0: \f$\mu \f$ \f$\leq \f$ 75, H1: \f$\mu \f$ > 75Correct B.H0: \f$\mu \f$ = 75, H1: \f$\mu \f$? 75C.H0: \f$\mu \f$ \f$\geq \f$ 75, H1: \f$\mu \f$ 75Answer Key:Question 10 of 201.0/ 1.0 PointsThe ?Pizza Hot? manager commits a Type I error if he/she isA.staying with old style when new style is betterB.staying with old style when new style is no better than old styleC.switching to new style when it is better than old styleCorrect D.switching to new style when it is no better than old styleAnswer Key:Question 11 of 200.0/ 1.0 PointsYou conduct a hypothesis test and you observe values for the sample mean and sample standard deviation when n = 25 that do not lead to the rejection of H0. You calculate a p-value of 0.0667. What will happen to the p-value if you observe the same sample mean and standard deviation for a sample size larger than 25?A.The p ? value increasesB.The p ? value decreasesIncorrect C.The p ? value may increase or decreaseD.The p ? value stays the sameAnswer Key:Part 2 of 3 - 3.0/ 6.0 PointsQuestion 12 of 200.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.A survey determines that mint chocolate chip is the favorite ice cream flavor of 6% of consumers. An ice cream shop determines that of 240 customers, 18 customers stated their preference for mint chocolate chip.Find the P-value that would be used to determine if the percentage of customers who prefer mint chocolate chip ice has increased at a 5% level of significance.P-value: Correct.3278 Round your answer to four decimal places as necessary.Answer Key: 0.1635|0.1639Feedback: This is a right-tail hypothesis test with a test statistic of z = 0.978492.Question 13 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.The ABC battery company claims that their batteries last 100 hours, on average. You decide to conduct a test to see if the company's claim is true. You believe that the mean life may be different from the 100 hours the company claims. You decide to collect data on the average battery life (in hours) of a random sample of n = 20 batteries. Some of the information related to the hypothesis test is presented below.Test of H0: f$mu f$ = 100 versus H1: f$mueq f$ 100Sample mean 98.5Std error of mean 0.777Assuming the life length of batteries is normally distributed, if you wish to conduct this test at the 0.05 level of significance, what are the critical values that you should use? Place the smaller critical value, rounded to 3 decimal places, in the first blank. For example, -1.234 would be a legitimate entry. Correct-2.093. Place the larger critical value, rounded to 3 decimal places, in the second blank. For example, 1.234 would be a legitimate entry. Correct2.093Answer Key: -Question 14 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.A medical doctor wishes to test the claim that the standard deviation of the systolic blood pressure of deep sea divers is less than 450. To do so, she selected a random sample of 20 divers and found s = 432.Assuming that the systolic blood pressures of deep sea divers are normally distributed, if the doctor wanted to test her research hypothesis at the.01 level of significance, what is the critical value?Place your answer, rounded to 3 decimal places, in the blank. For example, 4.567 would be a legitimate entry. Correct7.633Answer Key:Question 15 of 200.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.Suppose a firm that produces light bulbs wants to know whether it can say that its light bulbs typically last more than 1500 hours. Hoping to find support for their claim, the firm collects a random sample of n = 25 light bulbs and records the lifetime (in hours) of each bulb. The information related to the hypothesis test is presented below.Test of H0: f$mu leq f$ 1500 versus H1: f$ mu f$ > 1500Sample mean 1509.5Std error of mean 4.854Assuming the life length of this type of lightbulb is normally distributed, what is the p-value associated with this test? Place your answer, rounded to 3 decimal places in the blank. For example,.123 would be a legitimate entry. Correct1.711Answer KeyQuestion 16 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.The ABC battery company claims that their batteries last at least 100 hours, on average. Your experience with their batteries has been somewhat different, so you decide to conduct a test to see if the company's claim is true. You believe that the mean life is actually less than the 100 hours the company claims. You decide to collect data on the average battery life (in hours) of a random sample of n = 20 batteries. Some of the information related to the hypothesis test is presented below.Test of H0: f$mu geq f$ 100 versus H1: f$mu ="color:>="color:>="color:>="msonormal">="msonormal">="msonormal">="msonormal">

 

Paper#62417 | Written in 18-Jul-2015

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