Find the left and right chi square values, then give the confidence interval. Sample Variance s = 14.6 Confidence Level c = 0.90 and Sample Size n = 22 Left Right 1+c 1- c Level of Significance a 2 Degrees of Freedom 72 Confidence Interval for Variance o (n – 1)s² (n – 1)s?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Find the left and right chi square values, then give the confidence interval.
Sample Variance s = 14.6
Confidence Level c =
0.90 and Sample Size n = 22
Left
Right
1+c
1- c
Level of Significance a
Degrees of Freedom
n – 1
Confidence Interval for Variance o
(n -
1)s
(n – 1)s²
XR
XL
and XR
%3D
At the 90 % level of confidence the population variance is between
and
(Round all answers to 3 decimal places)
Transcribed Image Text:Find the left and right chi square values, then give the confidence interval. Sample Variance s = 14.6 Confidence Level c = 0.90 and Sample Size n = 22 Left Right 1+c 1- c Level of Significance a Degrees of Freedom n – 1 Confidence Interval for Variance o (n - 1)s (n – 1)s² XR XL and XR %3D At the 90 % level of confidence the population variance is between and (Round all answers to 3 decimal places)
Expert Solution
Step 1

Givensample variance(s2)=14.6sample size(n)=22confidence level(c)=0.90α=1-0.90=0.10α2=0.051-α2=1-0.05=0.95Degrees of freedom(df)=n-1=22-1=21

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