How many rounds of golf do those physicians who play golf play per year? A survey of 12 physicians revealed the following numbers:

7,39,16,3,30,36,19,15,15,29,12,48

Estimate with 95% confidence the mean number of rounds played per year by physicians, assuming that the population is normally distributed with a standard deviation of 8.

Note:For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits.

Confidence Interval =