Question

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 33 business days, the mean closing price of a certain stock was $107.64. Assume the population standard deviation is $10.5%. The 90% confidence interval is ( (Round to two decimal places as needed.)

Name: 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 com 62575
Uploaded: 2023-08-25T10:54:31-08:00
Duration: 3 min 4 s
Channel: Jerelyn Nevil
Description: 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 com 62575

          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 33 business days, the mean closing price of a certain stock was $107.64. Assume the population standard deviation is $10.5%.
The 90% confidence interval is (
(Round to two decimal places as needed.)

Added by Jonathan H.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Jerelyn Nevil

08/25/2023

Step 1

- Sample mean $\bar{x} = 107.64$ - Population standard deviation $\sigma = 10.5$ - Sample size $n = 33$ - Confidence levels: 90% and 95% Show more…

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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 33 business days, the mean closing price of a certain stock was $107.64. Assume the population standard deviation is $10.5%. The 90% confidence interval is ( (Round to two decimal places as needed.)