SOLUTION: The variance of rainfall for the past 15 years is 6.5 inches. Find the 95% confidence interval for the standard deviation of rainfall.

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Question 1175372: The variance of rainfall for the past 15 years is 6.5 inches. Find the 95% confidence interval for the standard deviation of rainfall.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
The variance of rainfall for the past 15 years is 6.5 inches
95%  confidence interval 
df 14  t = 2.14
ME =+z%2Asigma%2Fsqrt%28n%29  
ME = 2.14 sqrt(6.5/15) 

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