In the book Essentials of Marketing Research, William R. Dillon, Thomas J. Madden, and Neil H. Firtle
Question:
a. Letting p1 be the proportion of homeowners who would buy the security system, and letting p2 be the proportion of renters who would buy the security system, set up the null and alternative hypotheses needed to determine whether the proportion of homeowners who would buy the security system differs from the proportion of renters who would buy the security system.
b. Find the test statistic z and the p- value for testing the hypotheses of part a. Use the p- value to test the hypotheses with a equal to .10, .05, .01, and .001. How much evidence is there that the proportions of homeowners and renters differ?
c. Calculate a 95 percent confidence interval for the difference between the proportions of homeowners and renters who would buy the security system. On the basis of this interval, can we be 95 percent confident that these proportions differ? Explain.
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Related Book For
Essentials Of Business Statistics
ISBN: 9780078020537
5th Edition
Authors: Bruce Bowerman, Richard Connell, Emily Murphree, Burdeane Or
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