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

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

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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 $3.34. Assume the sample is taken from a normally distributed population. Construct 80% confidence intervals for (a) the population variance e7 and (b) the population standard deviation a, Interpret the results. (a) The confidence interval for the population variance is (Round to two decimal places as needed.) -COD
You randomly select and measure the contents of 10 bottles of cough syrup. The results (in fluid ounces) are shown to the right 4.254 4.245 4.244 4.226 Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance ² and (b) the population standard deviation . Interpret the results (a) The confidence interval for the population variance is D (Round to six decimal places as needed.) 4219 4215 CIED 4.295 4.262 4.185 4.235
The diameters (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 99% level of confidence to construct a confidence interval for (a) the population variance o² and (b) the population standard deviation e Interpret the results. 4.469 4.418 4.011 4.308 4.004 3.755 3812 3.745 4.221 3.906 4.113 4.525 3.966 3.752 3.873 3.811 4.433 (a) The confidence interval for the population variance is (Round to three decimal places as needed.) CID
The diameters (in inches) of 17 randomly selected bolts produced by a machine are listed Use a 90% level of confidence to construct a confoence interval for (a) the population variance of and (b) the population standard deviation Interpret the resu 4.469 4418 4011 4308 4004 3.755 3.812 3.745 4221 3986 4113 4525 3.000 3.752 3873 3811 4433 (a) The confidence interval for the population variance (Round to three decimal places as needed)
You randomly select and measure the contents of 10 bottles of cough syrup. The results in fuid ounces are shown to the right 4.254 4245 4244 4221 Assume the sample saken from a normaly distributed population Construct 95% confidence intervals for (a) the population vanance of and the population standard deviation erpret the resu (a) The confidence interval for the population varance s CD Pound to sis deal places as needed) 4296 4210 4105 4235
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 standerd devonor 53:34 the sample is taken from a normally distributed population Construct 80% confidence intervals for (a) the population variance of and (b) the population standard deviation in the results (4) The confidence interval for the population vanance is D (Round to two decimal places as needed)
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