Alec works for a consumeradvocacy group.Hehas been asked to look at a battery company that claims its batteries last an average of 100 hours under normal use.There have been several complaints that the batteries are dying too quickly, sohedecides to test them.To do this,herandomly selects batteries and runs them until they die.Using the data provided, constructthe 90% confidence interval.

85.6

94.5

100.2

94.7

88.1

91.3

92.6

94.9

90.9

102.4

95.2

95.7

100.6

105.3

104.2

100.8

91.5

101.2

94.1

96.7