BUSI 1013
UNIT 9 EXERCISE
Consider this hypothesis test:
H0: p1 - p2 = 0
Ha: p1 - p2 > 0
Here p1 is the population proportion of “yes” of Population 1 and p2 is 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 1
Population 2
Sample Size (n)
400
600
Number of “yes”
300
426
Sample proportion (Pbar)
300/400=0.75
426/600=0.71
A.
B.What is the p-value?
C.Should H0 be rejected? Use the p-value and a level of significance of 0.05 to justify youranswer.
