Question: What is the upper bound? A simple random sample of size n is drawn from a population that is known to be normally distributed. The

What is the upper bound?

A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s , is determined to be 12.9. Complete parts (a) through (c). . . . (a) Construct a 90% confidence interval for of if the sample size, n, is 20. The lower bound is 8.13 . (Round to two decimal places as needed.) The upper bound is . (Round to two decimal places as needed.)

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