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MATH 225N WEEK 7 HYPOTHESIS EXAM 2020/2021 - Chamberlain College of Nursing

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MATH 225N WEEK 7 HYPOTHESIS EXAM 2020/2021

Week 7 Assignment Hypothesis Test for the mean-Polution Standard Deviation known

Compute the value of the test statistic (z-value) for a hypothesis test for one population mean with a known standard deviation

Question

Jamie, a bowler, claims that her bowling score is less than 168 points, on average. Several of her teammates do not believe her, so she decides to do a hypothesis test, at a 1% significance level, to persuade them. She bowls 17 games. The mean

score of the sample games is 155 points. Jamie knows from experience that the

standard deviation for her bowling score is 19 points.

•  H0: μ≥168; Ha: μ<168

•  α=0.01 (significance level)

What is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places?

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MATH 225N WEEK 7 HYPOTHESIS EXAM 2020/2021 Week 7 Assignment Hypothesis Test for the mean-Polution Standard Deviation known Compute the value of the test statistic (z-value) for a hypothesis test for o...
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