Assume that a sample is used to estimate a population mean u. Find the 90% confidence interval for a sample of size 406 with a mean of 72.1 and a standard deviation of 17.5. Enter your answer as a tri-linear inequality accurate to 3 decimal places. Submit Question
Assume that a sample is used to estimate a population mean u. Find the 90% confidence interval for a sample of size 406 with a mean of 72.1 and a standard deviation of 17.5. Enter your answer as a tri-linear inequality accurate to 3 decimal places. Submit Question
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Assume that a sample is used to estimate a population mean \( \mu \). Find the 90% confidence interval for a sample of size 406 with a mean of 72.1 and a standard deviation of 17.5. Enter your answer as a tri-linear inequality accurate to 3 decimal places.
\[ \text{[Input Box]} < \mu < \text{[Input Box]} \]
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Transcribed Image Text:Assume that a sample is used to estimate a population mean \( \mu \). Find the 90% confidence interval for a sample of size 406 with a mean of 72.1 and a standard deviation of 17.5. Enter your answer as a tri-linear inequality accurate to 3 decimal places.
\[ \text{[Input Box]} < \mu < \text{[Input Box]} \]
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Expert Solution
Step 1
Here,
Sample mean ( = 72.1
Sample Standard deviation(s) = 17.5
total number of observations (n)= 406
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