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##### 1. Consider the file data on Taxes that is include...

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Solution

**Question**

1. Consider the file data on Taxes that is included in worksheet P1 on the exam template. This data represents a sample of property taxes paid by 170 residents that live in a small town, thus, data taken from the same population. Answer the following questions : a. Recent data shows that pay no more than $1800 in annual taxes. Conduct a hypothesis test at the alpha = .05 level to determine if all 170 samples compares to the $1800 specified value. b. Conduct a test at the alpha = .05 level to determine if there is a difference between taxes paid in neighborhood 1 and in neighborhood 4. Use all the data points from both neighborhoods. c. From part b, what is the 95% confidence interval for the difference between means d. Conduct a test alpha equals .05 level to determine if the difference of taxes paid between neighborhoods 5 and 6 is greater than $1600. Assume that this statement is true U5 ? U6 >= $1600 2. In a study to estimate the portion of residents in a certain city and its suburbs who favor the construction of a nuclear power plant, it is found that 63 of 100 urban residents favor the construction while only 59 of 125 suburban residents are in favor. Is there a significant difference between these proportions at the alpha = .1 level? Also, what is the upper and lower limit 90% confidence interval values of the difference . 3. A machine is supposed to mix peanuts, hazelnuts, cashews and pecans in the ratio 5:2:2:1. A can containing 500 of these mixed nuts was found to have 269 peanuts, 112 hazelnuts, 74 cashews, and 45 pecans. At the 0.05 level of significance, conduct a nonparametric test that the machine is mixing nuts in the ratio 5:2:2:1. 4. Sheet P4 on the excel template contains data from 423 graduates from a business school in Canada. The graduates were polled and classified by gender and workaholism types. Test the hypothesis that gender and workaholism types are independent. Conduct the test at the alpha of .05 level. 5. The following data represents the running time of films produced by 2 motion picture companies. Assume these are independent samples Company Time (in minutes) Company 1 102 86 98 109 92 Company 2 81 165 97 134 92 87 114 Test the null hypothesis that the average running time of the films produced by company 2 exceeds the average running time of films produced by company 1 by an amount of 10 minutes. Test against the null hypothesis of a one sided alternative that the difference is more than 10 minutes. Use a .1 level of significance (alpha). Problems Problem 1a (State Ho and Ha) Problem 1a (Critical T Value) Problem 1a (Calculated T Value) Problem 1a (Decision ) Problem 1b (State Ho and Ha) Problem 1b (Critical T Value) Problem 1b (Calculated T Value) Problem 1b (Decision ) Problem 1c (Upper Limit) Problem 1c (Lower Limit) Problem 1d (State Ho and Ha) Problem 1d (Critical T Value) Problem 1d (Calculated T Value) Problem 1d (Decision ) Problem 2 (State Ho and Ha) Problem 2 (Critical Z Value) Problem 2 (Calculated Z Value) Problem 2 (Decision ) Problem 2 (Upper Limit) Problem 2(Lower Limit) Problem 3 (Critical Chi Square Value) Problem 3(Calculated Chi Square Value) Problem 3 (P value) Problem 3 (Decision) Problem 4 (Critical Chi Square Value) Problem 4 (Calculated Chi Square Value) Problem 4 (P value) Problem 4 (Decision) Problem 5 (State Ho and Ha) Problem 5 (Critical T Value) Problem 5 (Calculated T Value) Problem 5 (Decision ) SEE ATTACHED FOR PROBLEMS 1 AND 4,If you could, I need this as soon as possible.....but Monday at the latest. Thank you in advance.

Paper#13452 | Written in 18-Jul-2015

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