Question: please answer A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s2,

please answer

A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s2, is determined to be 13.3. Complete parts (a) through (c). (a) Construct a 90% confidence interval for 52 if the sample size, n, is 20. The lower bound is D. (Round to two decimal places as needed.)

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