Question
Random samples of size n1=55 and n2 = 65 were drawn from populations 1 and 2 , respectively. The samples yielded p 1=.7 and p
Random samples of size n1=55 and n2 = 65 were drawn from populations 1 and 2 , respectively. The samples yielded p ̂1=.7 and p ̂2=.6. Test Ho: (p1-p2) = 0 against Ha: (p1-p2) ≠0 using α = .05.
1) Perform a hypothesis test of p1 = p2 with a 5% significance level (95% confidence level).
2) Obtain a 95% confidence interval estimate of p1 - p2.
3) Do you come up with the same conclusion for Question 19 and Question 20? Why or why not?
Step by Step Solution
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1 Test statistic Critical value Z005 1645 As the test statistic does not fall in the critica...
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Step: 3
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Introduction To Probability And Statistics
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
14th Edition
1133103758, 978-1133103752
