It Has Been Hypothesized That on Average Employees Spend One $\alpha$

Multiple Choice

It has been hypothesized that on average employees spend one hour a day playing video games at work.To test this at her company,a manager takes a random sample of 35 employees who showed a mean time of 55 minutes per day with a standard deviation of 5 minutes.Calculate a confidence interval to test the hypotheses at $\alpha$ = .02.

A) [52.39 57.61]
B) [53.03 56.97]
C) [52.82 57.18]
D) [53.34 56.66]
E) [52.46 57.54]