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Construct a confidence interval

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A simple random sample of size 20 is drawn from a population that is known to be normally distributed. The sample variance, s2 , is determined to be 12.5. Construct a 90% confidence interval for 2 . σThe lower bound is. (Round to two decimal places as needed.)

The upper bound is. (Round to two decimal places as needed.)

Reference no: EM131717673

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