Ascott J EX 9-com.docx - Ascott Jennifer ex 9 1 Consider this hypothesis test H0 p1 p2 = 0 Ha p1 p2 > 0 Here p1 is the population proportion of

Ascott J EX 9-com.docx - Ascott Jennifer ex 9 1 Consider...

• tidussucky
• 5
• 100% (20) 20 out of 20 people found this document helpful

This preview shows page 1 - 3 out of 5 pages.

Ascott Jennifer ex 9 6/5/2019 1. Consider this hypothesis test:H0: p1- p2= 0Ha: p1- p2> 0Here p1is the population proportion of “yes” of Population 1 and p2is the population proportion of “yes” of Population 2. Use the statistics data from a simple random sample of each of the two populations to complete the following: (8 points)Population 1Population 2Sample Size (n)400600Number of “yes”300426a.Compute the test statistic z. b.What is the p-value? c.Should H0be rejected? Use the p-value and a level of significance of 0.05 to justify your answer. d.Use the above data to construct a 95% confidence interval for p1- p20.75-0.71± 1.96 x SQRT (0.75(1-0.75)/400+0.71(1-0.71/600))= 0.04± 0.056= -0.006, 0.096
Ascott Jennifer ex 9 6/5/2019

You've reached the end of your free preview.

Want to read all 5 pages?

• Winter '15
• Statistics, Statistical hypothesis testing, H0, Ascott Jennifer