You randomly select and measure the contents of 10 bottles of cough syrup. The results (in fluid ounces) are shown to the right.
4.212 4.294
4.258 4.244
4.187 4.299
4.262 4.243
4.221 4.232
Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for
(a) the population variance
(b) the population standard deviation and Interpret the results.