Question: A school surveys 40 randomly selected students and asks the number of dollars spent on music during the calendar year. The results are shown:

20 60 15 25 65

100 150 200 100 60

5 70 160 50 100

0 75 120 80 120

80 50 12 300 75

75 100 40 40 85

80 140 100 45 100

65 10 80 70 10

Using Excel, construct a 95% confidence interval for the mean dollars spent.

95 % confidence interval :

___________ Round your answers to two decimal places.