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 standard deviation of $3.95. Assume the sample is taken from a normally distributed population. Construct 98% confidence intervals for (a) the population variance σ² and (b) the population standard deviation σ. Interpret the results. (a) The confidence interval for the population variance is ( [ ] , [ ] ) (Round to two decimal places as needed.) [Note: Diagram and graphs are not applicable in this text.]

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