Hypotheses that if the population variance


A sample of 30 items provided sample mean of 28 and sample standard deviation of 6. Test the hypotheses that if the population variance is less than 25, using a = 0.05.

a. Formulate the hypothesis

b. Compute Chi-Square statistics

c. Employ critical value approach, what is your conclusion?

d. Employ p-value approach, what is your conclusion?

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Basic Statistics: Hypotheses that if the population variance
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