A study of 35 golfers showed that their averages score on a particular course was 92. The standard deviation of the sample is 5. Find the best point...

A study of 35 golfers showed that their averages score on a particular course was 92. The standard deviation of the sample is 5. a. Find the best point estimate of the mean. b. Find the 95% confidence interval of the mean score for all golfers. c. Find the 95% confidence interval of the mean score if a sample of 60 golfers is used instead of a sample of 35. d. Which interval is smaller? Explain.