Example: Assume that IRS records indicate that the mean charitable contribution on federal tax returns was $1075 in 2001. Assume a sample of April 2004 tax returns will be used to conduct a hypothesis test designed to determine whether any change has occurred in the mean charitable contributions. Formulate the null and alternative hypotheses. Assume that a sample of 200 tax returns has a sample mean of $1160 and historical records indicate that the population standard deviation s=$840. What is the value of the test statistic? What is the p-value? Using a = .05, what is your conclusion? Repeat the hypothesis test using the critical value approach.
Example: Assume that IRS records indicate that the mean charitable contribution on federal tax returns was $1075 in 2001. Assume a sample of April 2004 tax returns will be used to conduct a hypothesis test designed to determine whether any change has occurred in the mean charitable contributions. Formulate the null and alternative hypotheses. Assume that a sample of 200 tax returns has a sample mean of $1160 and historical records indicate that the population standard deviation s=$840. What is the value of the test statistic? What is the p-value? Using a = .05, what is your conclusion? Repeat the hypothesis test using the critical value approach.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Example: Assume that IRS records indicate that the
- Formulate the null and alternative hypotheses.
- Assume that a sample of 200 tax returns has a sample mean of $1160 and historical records indicate that the population standard deviation s=$840. What is the value of the test statistic?
- What is the p-value?
- Using a = .05, what is your conclusion?
- Repeat the hypothesis test using the critical value approach.
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