# Test of hypothesis on the population standard deviation

A random sample of 51 observations was selected from a normally distributed population. The sample mean was x = 88.6 , and the sample variance was s2 = 38.2. We wish to determine if there is sufficient reason to conclude that the population standard deviation is not equal to 8 at the 0.05 level of significance.

Calculate the value of the test statistic.

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A random sample of 51 observations was selected from a normally distributed population. The sample mean was x = 88.6, and the sample variance was s2 = 38.2. We wish to determine if there ...

#### Solution Summary

Tests the hypothesis that the population standard deviation is not equal to 8 at the 0.05 level of significance.

$2.19