Answers GA-Advanced Algebra Concepts and Connections CRStatistical Inferences

Statistical Inferences Answers

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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?

4.12

0.01

0.20

20.5

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A confidence level of 95% means:

95% of the time, sample percentages will fall above the mean.

95% of the time, population data will fall between 149.61 and 150.39.

the mean of 95% of the adults in the sample was 150.

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