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A social psychologist is designing a study to see whether people who see a particular film...

A social psychologist is designing a study to see whether people who see a particular film will be more likely to see violence as a solution to a problem. The psychologist plans to use a scale that assesses this construct, the Problem-Violence Scale, which has a population mean of 85, a standard deviation of 10, and is normally distributed. The psychologist takes a sample of 20 people, randomly and shows them the film prior to having them solve problems. On the Problem-Violence Scale mentioned, this sample scores a mean of 88. The research question is, does the film cause an increase in the use of violence to solve a problem? Use a one-tailed test with a significance level of .05 to conduct the steps of hypothesis testing. What is the Research & Null hypothesis? Determine the characteristics of the comparison distribution to compare to sample distribution:

Solutions

Expert Solution

This is a Z test since the population standard deviation of the Problem-Violence Scale is given.

Hence we have no evidence that the  film cause an increase in the use of violence to solve a problem

milcah answered 2 months ago
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