(Answered) Q3nbspusing a people-counting device at the entry to a

Statistics

Q.3 Using a people-counting device at the entry to a particular department store in Sydney, the average number of shoppers visiting the store during any one-hour period was determined as 448 shoppers with a standard deviation of 21 shoppers.

(a) What is the probability that a random sample of 49 different one-hour shopping periods will yield a sample mean between 441 and 446 shoppers?

(b) Interpret your answer in words.

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