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[Solved] A random sample of 41 observations was selected from a normally __ distributed population. The sample mean was x = 61, and the sample variance

Question: A random sample of 41 observations was selected from a normally

__

distributed population. The sample mean was x = 61, and the sample variance was s 2 = 18.0. Does the sample show sufficient reason to conclude that the population standard deviation is not equal to 4 at the 0.05 level of significance?  Use the p -value method.
State the null and alternate hypotheses
Determine which test statistic applies, and calculate it
Determine the corresponding probability, and compare to α
State your decision: Should the null hypothesis be rejected?

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