(6 1) 9 You are given the sample mean and the population standard deviation Use this information to construct the 90 and 95 confidence intervals for the population mean Interpret the results and compare the widths of the confidence intervals From a random sample of 43 business days, the mean closing price of a certain stock was $112 90 Assume the population standard deviation is $9 64 Question content area bottom Part 1 The 90 confidence interval is (enter your response here,enter your response here) (Round to two decimal places as needed )

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Question: (6.1). 9 You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for

(6.1). 9

You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.

From a random sample of

business days, the mean closing price of a certain stock was

$112.90.

Assume the population standard deviation is

$9.64.

Question content area bottom

Part 1

The 90% confidence interval is

(enter your response here,enter your response here).

(Round to two decimal places as needed.)

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