Scary-movie study. According to a University of Michigan study, many adults have experienc...

Scary-movie study. According to a University of Michigan study, many adults have experienced lingering “fright” effects from a scary movie or TV show they saw as a teenager. (Tampa Tribune, March 10, 1999.) In a survey of 150 college students, 39 said they still experience “residual anxiety” from a scary TV show or movie.

a. Give a point estimate for the true proportion of college students who experience “residual anxiety” from a scary TV show or movie.

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b. Find a 95% confidence interval for p.

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c. Interpret the interval you found in part b.