The two-way table shows sample results and hypotheses are given for a test for a difference...
The two-way table shows sample results and hypotheses are given
for a test for a difference in the proportion saying yes between
the two groups.
Test H0 : p1=p2 vs Ha : p1>p2 using the results:
| Yes | No | Total | |
|---|---|---|---|
| Group 1 | 128 | 72 | 200 |
| Group 2 | 55 | 45 | 100 |
| Total | 183 | 117 | 300 |
Find the value of the standardized z-test statistic and
then use the standard normal distribution to find the
p-value.
Round your answers to three decimal places.
test statistic = Enter your answer; test statistic
p-value = Enter your answer; p-value
What is the conclusion using a 5% significance level?
Reject H0.
Do not reject H0.
Homework Answers
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