Question: Question content area top Part 1 A simple random sample of size n is drawn from a population that is known to be normally distributed.

Question content area top

Part 1

A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance,

s squareds2,

is determined to be

11.611.6.

Complete parts (a) through (c).

Question content area bottom

Part 1

(a) Construct a 90% confidence interval for

sigma squared2

if the sample size, n, is 20.

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