"In a study to test the effects of science fiction movies on people?s belief in the supernatural, seven people completed a measure of belief in the supernatural before and after watching a popular science fiction movie. Which of the following hypothesis tests would be most appropriate given this scenario?"     single-sample t-test     independent sample t-test     dependent sample t-test     z-test

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A: Solution To find the confidence interval we will use the z distribution i.e. z critical value.

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A: Solution:

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Q: What is the test statistic for this sample? test statistic = What is the p-value for this sample?…

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