A random sample of 20 observations showed a standard deviation of 8. At 95% confidence, test...

A random sample of 20 observations showed a standard deviation of 8. At 95% confidence, test to see if the variance of the population is significantly less than 65. State the null and alternative hypotheses.

Select one:

A. H0: 2 65 Ha: 2 > 65

B. H0: 2 65 Ha: 2 < 65

C. H0: 2 = 65 Ha: 2 65

D. None of the above answers is correct

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TOPIC:Null and alternative hypothesis for the given test.

(The null and alternative hypothesis should be disjoint and exhaustive).

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