The Cambridge Power and Light Company selected a random sample of 20 residential
ID: 1204209 • Letter: T
Question
The Cambridge Power and Light Company selected a random sample of 20 residential customers. Following are the amounts, to the nearest dollar, the customers were charged for electrical service last month:
52
49
53
51
22
44
75
45
66
76
64
61
33
37
51
68
34
66
63
61
Compute the arithmetic mean.(Round your answer to 2 decimal places.)
Statistic
Parameter
The Cambridge Power and Light Company selected a random sample of 20 residential customers. Following are the amounts, to the nearest dollar, the customers were charged for electrical service last month:
Explanation / Answer
Arithmetic mean is $1071/20 = $ 53.55
This is a statistic sample assuming that the Cambridge Power and Light Company serves more than 20 customers.
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