Question: please help me Calculate Confidence Interval for standard deviation: If <2 Confidence level: 1 = 0.95 Given that =20 ^2=4 xbar=20.77. S^2n = 4.85 n=10

please help me Calculate Confidence Interval for standard deviation:

If <2

Confidence level: 1 = 0.95

Given that

=20 ^2=4

xbar=20.77. S^2n = 4.85 n=10

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