Sales personnel for Skilingsdistributors submit weeklyreports listing the customer contacts made during the week. A sample of 36 weekly reports showed a sample mean of 25 customer contacts per week. The sample standard deviation was 8. What is 90% confidence interval for the population mean number of weekly customer contacts for the sales personnel?

(22.75, 27.25)

(33.21,37.88)

(47.82,49.98)

(24.39,35.23)