Use the data in Try It Yourself 1 and a 95% confidence level to find the margin
Question:
Use the data in Try It Yourself 1 and a 95% confidence level to find the margin of error for the mean number of hours worked by grocery store employees. Assume the population standard deviation is 7.9 hours.
a. Identify zc, n, and σ.
b. Find E using zc, σ, and n.
c. Interpret the results.
Transcribed Image Text:
Number of hours 26 25 32 31 28 28 28 22 28 25 21 40 32 22 25 22 26 24 46 20 35 22 32 48 32 36 38 32 22 19
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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