Question: 7.42. 7.44 Consider the following random sample from a normal population: 11 17 8 7 9 a. Find the 90% confidence interval for population variance.

7.42.

7.44 Consider the following random sample from a normal population:

11 17 8 7 9

a. Find the 90% confidence interval for population variance.

b. Find the 95% confidence interval for the population variance.

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