You randomly select and measure the contents of 10 bottles of cough syrup. The results (in fluid) are shown. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance o^2 and (b) the population standard deviation o.
4.212
4.298
4.251
4.241
4.186
4.267
4.262
4.244
4.226
4.234