A magazine includes a report on the energy costs per year for​ 32-inch liquid crystal display​ (LCD) televisions. The article states that 14 randomly selected​ 32-inch LCD televisions have a sample...

A magazine includes a report on the energy costs per year for​ 32-inch liquid crystal display​ (LCD) televisions. The article states that

randomly selected​ 32-inch LCD televisions have a sample standard deviation of

Assume the sample is taken from a normally distributed population. Construct

confidence intervals for​ (a) the population variance

and​ (b) the population standard deviation

Interpret the results.

​(a) The confidence interval for the population variance is ?!