Weekly sales with the El Barato Supermarket Family Card are on average $2,570 in its Mayagez store

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Weekly sales with the El Barato Supermarket Family Card are on average $2,570 in its Mayagüez store with a standard deviation of $680.

Determine what is the probability that in a sample of 81 weeks

a) the sample average weekly sales is at least $2,300?

b) Is the sample average weekly sales between $2,400 and $2,600?

Related Book For answer-question

Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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Posted Date: Sep 18, 2023 02:45 AM

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Weekly sales with the El Barato Supermarket Family Card are on average $2,570 in its Mayagez store

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Business Statistics A Decision Making Approach

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