Question
The following MINITAB output presents the results of a hypothesis test for the difference
P1- P2 between two population proportions.
Test and CI for Two Proportions
Sample
х N
Sample p
41 97
0.422680
2
37 61
0.606557
Difference = p (1) – p (2)
Estimate for difference: -0.183877
95% CI for difference: (-0.341016, -0.026738)
Test for difference = 0 (vs not = 0): Z = -2.25 P-Value = 0.024
%3D
%3D
Is this a one-tailed or two-tailed test?
a.
b.
What is the null hypothesis?
Can Họ be rejected at the 5% level? How can you tell?
C.
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Transcribed Image Text:The following MINITAB output presents the results of a hypothesis test for the difference P1- P2 between two population proportions. Test and CI for Two Proportions Sample х N Sample p 41 97 0.422680 2 37 61 0.606557 Difference = p (1) – p (2) Estimate for difference: -0.183877 95% CI for difference: (-0.341016, -0.026738) Test for difference = 0 (vs not = 0): Z = -2.25 P-Value = 0.024 %3D %3D Is this a one-tailed or two-tailed test? a. b. What is the null hypothesis? Can Họ be rejected at the 5% level? How can you tell? C.
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