Question
A Newspaper store checks out an average of = 320 papers per day, with a standard deviation of =75 newspapers. Consider a sample of 30
A Newspaper store checks out an average of = 320 papers per day, with a standard deviation of =75 newspapers. Consider a sample of 30 days of operation, with x being the sample mean number of newspapers checked out per day.
- What is the shape of the sampling distribution of x? Why?
- What is the standard deviation of x?
- What is the probability that the sample mean for the 30 days will be between 300 and 340 newspapers?
- What is the probability the sample mean will show 325 or more books checked out?
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Quantitative Analysis For Management
Authors: Barry Render, Ralph M. Stair, Michael E. Hanna
11th Edition
9780132997621, 132149117, 132997622, 978-0132149112
