Mathematics, 13.04.2020 03:16 rqg001e

For a random sample of 45 business days, the mean closing price of a certain stock was $113.33. Assume the population standard deviation is $9.91. What is the 90% confidence interval? What is the 95% confidence interval?

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For a random sample of 45 business days, the mean closing price of a certain stock was $113.33. Assu...

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