You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 9. Find the critical value that corresponds to a confidence level of 99%. Round to three decimal places.
You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 9. Find the critical value that corresponds to a confidence level of 99%. Round to three decimal places.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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![**Estimating Population Mean with Confidence Interval**
You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 9.
**Question:**
Find the critical value that corresponds to a confidence level of 99%. Round to three decimal places.
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Transcribed Image Text:**Estimating Population Mean with Confidence Interval**
You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 9.
**Question:**
Find the critical value that corresponds to a confidence level of 99%. Round to three decimal places.
**Input Box:**
[Text Entry Field]
**Submit Button:**
[Submit Question]
Expert Solution
Step 1
Obtain the critical value at the 99% confidence level.
The critical value at the 99% confidence level is obtained below as follows :
From the information, given that n=9.
The degrees of freedom is obtained below as follows:
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