Peak efficiency levels (in %) for the wind turbines at Miner's Point are shown for a sample of 10 days in April.According to the ""three-standard-deviation" approach to identifying outliers, determine the outlier(s), if any, here.
A)69 and 80.5
B)69
C)74.9 and 80.5
D)80.5
E)There are no outliers

Question

Peak efficiency levels (in %) for the wind turbines at Miner's Point are shown for a sample of 10 days in April.According to the ""three-standard-deviation" approach to identifying outliers, determine the outlier(s), if any, here. 
A)69 and 80.5 
B)69 
C)74.9 and 80.5 
D)80.5 
E)There are no outliers

Quizplus · Accepted Answer

The Answer of Peak efficiency levels (in %) for the wind turbines at Miner's Point are shown for a sample of 10 days in April.According to the ""three-standard-deviation" approach to identifying outliers, determine the outlier(s), if any, here. 
A)69 and 80.5 
B)69 
C)74.9 and 80.5 
D)80.5 
E)There are no outliers

Peak Efficiency Levels (In %) for the Wind Turbines at Miner's