Mathematics, 06.05.2020 04:18 aislynrae22

Among 420 randomly selected employees at a company, the mean number of hours of overtime worked per month is 10 hours and the standard deviation is 1.6. What is the margin of error, assuming a 99% confidence level?
Remember:
99% confidence level = z-score of 2.58
Margin of error, ME, can be determined using the formula ME=Z*S/square root of N

4.8

0.20

0.01

20.5

Answers: 2

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