Question
Two different simple random samples are drawn from two different populations. The first sample consists of...
Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with 11 having a common attribute. The second sample consists of 1800 people with 1283 of them having the same common attribute. Compare the results from a hypothesis test of p1 =p2 (with a 0.05 significance level) and a 95% confidence interval estimate of p1 - p2
- What are the null and alternative hypotheses for the hypothesis test?
- Identify the test statistic.(Round to two decimal places as needed.
- Identify the critical value(s).(Round to three decimal places as needed. Use a comma to separate answers as needed.)
- What is the conclusion based on the hypothesis test? The test statistic is/is not in the critical region, so reject/ fail to reject the null hypothesis. There is/is not insufficient evidence to conclude that p1 is not equal to p2
- The 95% confidence interval?
- Since 0 is included/not included in the
interval, it indicates to reject/fail to
reject
the null hypothesis.
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