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    Exam 11: Inferences About Population Variances
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    A Sample of 30 Items Provided a Sample Mean of 28
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A Sample of 30 Items Provided a Sample Mean of 28

Question 7

Question 7

Essay

A sample of 30 items provided a sample mean of 28 and a sample standard deviation of 6. Test the following hypotheses using α\alphaα = 0.05. What is your conclusion?
H0:  A sample of 30 items provided a sample mean of 28 and a sample standard deviation of 6. Test the following hypotheses using  \alpha  = 0.05. What is your conclusion? H<sub>0</sub>:   <sup>2</sup> < 25 H<sub>a</sub>:   <sup>2</sup> > 25 2 < 25
Ha:  A sample of 30 items provided a sample mean of 28 and a sample standard deviation of 6. Test the following hypotheses using  \alpha  = 0.05. What is your conclusion? H<sub>0</sub>:   <sup>2</sup> < 25 H<sub>a</sub>:   <sup>2</sup> > 25 2 > 25

Correct Answer:

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blured image 2 = 41.76 < 45.722...

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