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A simple random sample of size n is draw from a population that is known to be normally distributed. The sample variance, s2. is determined

A simple random sample of size n is draw from a population that is known to be normally distributed. The sample variance, s2. is determined to be 12.1. Complete parts (a) through (c). (a) Construct a 90% condence interval for 02 if the sample size, n. is 20. The lower bound is D (Round to two decimal places as needed.) a

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