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A random sample of 41...

A random sample of 41 observations was selected from normally distrubuted population. The sample mean x=81, and the sample variance was s2=25.0. Does the sample show sufficient reason to conclude that the population standard deviation is not equal to 6 at the 0.05 level of significance ? Use the p-value method.

State the null alternate hypotheses

Determine which test statistic applies, and calculate it.

Determine the corresponding probability, and compare to a

State your decision: Should the null hypotheses be rejected?

State the null alternate hypotheses

Determine which test statistic applies, and calculate it.

Determine the corresponding probability, and compare to a

State your decision: Should the null hypotheses be rejected?

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