Confidence Intervals for Standard Deviation and Variance Use the data below to construct a 95% confidence interval for the standard deviation and variance for home sale prices in Beavercreek (in thousands of dollars) 114.1 240.7 170.9 116.4 160.8 227.2 293.3 217.5 293.4 278.2 227.3 306.8 185.9 194.5 299.9 159 270.3 272.6 221.4 146.7 239.4 342.2 212.6 226.9 Use the Estimation of Variance and SD tab. Begin by entering the data starting in the yellow A19 field. Use the results (green) for standard deviation s and sample size n to complete the values beginning in B3 to B5. For B5, enter the confidence level as a decimal not a percentage.
Confidence Intervals for Standard Deviation and Variance Use the data below to construct a 95% confidence interval for the standard deviation and variance for home sale prices in Beavercreek (in thousands of dollars) 114.1 240.7 170.9 116.4 160.8 227.2 293.3 217.5 293.4 278.2 227.3 306.8 185.9 194.5 299.9 159 270.3 272.6 221.4 146.7 239.4 342.2 212.6 226.9 Use the Estimation of Variance and SD tab. Begin by entering the data starting in the yellow A19 field. Use the results (green) for standard deviation s and sample size n to complete the values beginning in B3 to B5. For B5, enter the confidence level as a decimal not a percentage.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Expert Solution
Step 1
Given data :
First we will calculate mean and standard deviation for the data :
Sample size ,n = 24
Sum = Σx = 5418
Mean, x̄ = Σx / n = 225.75
Calculating Variance and standard deviation :
Variance , s2 = 3795.341
Standard deviation , s = 61.606
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