Please use excel and excel formulas to solve

The new manager of Disneyland wants to estimate the mean of waiting time for the Splash Mountain ride. A sample of 20 people reveals the following wait time. Construct a 98% confidence interval for the population mean. Would it be reasonable for the manager to conclude that the mean waiting time is 30 mins? Interpret your results.

30

27

22

43

37

48

38

43

56

45

32

33

19

30

20

43

44

48

34

23