The random sample of n=75�=75 yielded a sample mean of x¯=26�¯=26. Assume that we know the population standard deviation is σ=30�=30. Step 2 of 3 : Calculate a 95% confidence interval for the population mean. Round your answers to 2 decimals places.
The random sample of n=75�=75 yielded a sample mean of x¯=26�¯=26. Assume that we know the population standard deviation is σ=30�=30. Step 2 of 3 : Calculate a 95% confidence interval for the population mean. Round your answers to 2 decimals places.
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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Question
The random sample of n=75�=75 yielded a sample mean of x¯=26�¯=26.
Assume that we know the population standard deviation is σ=30�=30.
Assume that we know the population standard deviation is σ=30�=30.
Step 2 of 3 :
Calculate a 95% confidence interval for the population mean. Round your answers to 2 decimals places.
Expert Solution
Step 1: Given data :
Sample of size(n)=75
Sample mean()=26
Population standard deviation(σ)=30
Step by step
Solved in 3 steps with 4 images
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