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Question 1 10 points Save The Olsen Agr...

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Question 1 10 points Save The Olsen Agricultural Company has determined that the weight of hay bales is normally distributed with a mean equal to 80 pounds and a standard deviation equal to 8 pounds. Based on this, what is the mean of the sampling distribution for if the sample size is n = 64? a. 80 b. 10 c. Between 72 and 88 d. 8 Question 2 10 points Save 44. If a manager wishes to develop a confidence interval estimate for estimating the difference between two population means, an increase in the size of the samples used will result in: a. an increase in the size of the critical value. b. a wider confidence interval. c. a more precise confidence interval. d. a less precise confidence interval Question 3 10 points Save 45.If the population variances are assumed to be known in an application where a manager wishes to estimate the difference between two population means, the 95% confidence interval estimate can be developed using which of the following critical values: a. z = 1.96. b. z = 1.645. c. t value that depends on the sample sizes from the two populations. d. z = 2.575 Question 4 10 points Save 59.A hypothesis test for the difference between two means is considered a two-tailed test when: a. the null hypothesis states that the population means are equal. b. the population variances are equal. c. the alpha level is 0.10 or higher. d. the standard deviations are unknown Question 5 10 points Save Which of the following is an assumption for the one-way analysis of variance experimental design? a. All populations are normally distributed. b. The populations have equal variances. c. The observations are independent. d. All of the above. Question 6 10 points Save In a test for determining whether two population variances are the same or different, the larger the sample sizes from the two populations, the lower will be the chance of making a Type I statistical error. True False Question 7 10 points Save In a hypothesis test involving two population variances, if the null hypothesis states that the two variances are strictly equal, then the test statistic is a chi-square statistic. True False Question 8 10 points Save When a pair of variables has a positive correlation, the slope in the regression equation will always be positive. True False Question 9 10 points Save The scatter plot is a two dimensional graph that is used to graphically represent the relationship between two variables. True False Question 10 10 points Save A one-tailed hypothesis test for a population variance always has the rejection region in the upper tail. True False Question 11 10 points (Extra credit) Save The test statistic that is used when testing a null hypothesis for a population variance is the standard normal z value. True False Question 12 10 points Save Which of the following statements is not consistent with the Central Limit Theorem? a. The Central Limit Theorem applies without regard to the size of the sample. b. The Central Limit Theorem applies to non-normal distributions. c. The Central Limit Theorem indicates that the sampling distribution will be approximately normal when the sample size is sufficiently large d. The Central Limit Theorem indicates that the mean of the sampling distribution will be equal to the population mean.,Great, Thank you.,just copy and paste and send to me.,I still can not download the document,once completed could you email to me directly with a like to accept so that you are being paid as well.,I no longer need this information, i faxed the center with my concerns. I have gotten the information elsewhere, i had termination my membership because of the problems that they system was having. Sorry

 

Paper#11452 | Written in 18-Jul-2015

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