Question: The Cambridge power and light company selected a random sample of 20 residential customers.Following are the amounts,to the nearest dollar,the customer were charged for electrical

The Cambridge power and light company selected a random sample of 20 residential customers.Following are the amounts,to the nearest dollar,the customer were charged for electrical service last month:(a) Arithmetic Mean= (b) Indicate whether it is statistic or a parameter

52 48 57 52 27 46 75 47 65 77 62 63 35 37 52 62 35 66 67 63 (a) Compute the arithmetic mean. (Round your answer to 2 decimal places. Omit the "E" sign in your response)

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