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 $3.63. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance o and (b) the population standard deviation o. Interpret the results. 券 筆 (a) The confidence interval for the population variance is (Round to two decimal places as needed.) Help me solve this View an example Get more help - Clear all Check answer 63°F Clear

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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 $3.63. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals
for (a) the population variance o and (b) the population standard deviation o. Interpret the results.
券
筆
(a) The confidence interval for the population variance is
(Round to two decimal places as needed.)
Help me solve this
View an example
Get more help -
Clear all
Check answer
63°F Clear
Transcribed Image Text: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 $3.63. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance o and (b) the population standard deviation o. Interpret the results. 券 筆 (a) The confidence interval for the population variance is (Round to two decimal places as needed.) Help me solve this View an example Get more help - Clear all Check answer 63°F Clear
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