Answered: A local church parish wants to raise…

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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Question

A local church parish wants to raise money to add to their campus. In a sample from a previous fund raising campaign, the parish found that of the 120 people in the sample they contacted, that 80 actually contributed money. Of those that contributed money, the average contribution was $850 with a standard deviation of $350. In the recent fundraising campaign, a sample of 90 people revealed that 52 have contributed money with an average contribution of $925 and a standard deviation of $420. When testing (at the 5% level of significance) whether the proportion of peole who are contributing has increased, the p-value of the test statistic is 0.143? What is your conclusion concerning the null that the contributions have increased?

		Reject the null hypothesis
		Fail to reject the null hypothesis

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