Question

I have part A of this question i just need part b and c. thank you!

1. the data collected from the 2012 General Social Survey (GSS) in which 50 respondents reported on the number of hours they watched tv per day. The results show that the average (mean) number of hours spent watching tv per day is 3.089 hours with a standard deviation of 2.87 hours

a) Calculate a 95% confidence interval to estimate the mean number of hours of tv the average American watches per day.

We are 95% confident that the true population mean number of hours spent watching tv per day is between 2.2935 to 3.8845 hours.

b.) What do you notice about the relationship between the sample size and the precision of your estimate?

c.) Write the formula for the standard error below. How can you verify your answer to part b by looking at the formula for standard error?

Answer 1