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    Modern Business Statistics
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    Exam 11: Inferences About Population Variances
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    The Time It Takes to Complete a Test Was Recorded
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The Time It Takes to Complete a Test Was Recorded

Question 18

Question 18

Essay

The time it takes to complete a test was recorded for a sample of 15 students. The results follow. The time it takes to complete a test was recorded for a sample of 15 students. The results follow.   Use Excel to estimate the variance with a 90% level of confidence. Use Excel to estimate the variance with a 90% level of confidence.

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