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A paint manufacturer uses a machine to fill gallon cans with paint (1 gal = 128 ounces). The manufacturer wants to estimate the mean volume of paint the machine is putting in the cans within 0.5 ounce. Assume the population of volumes is normally distributed. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.68 ounce. (b) The sample mean is 127.5 ounces. With a sample size of 8, a 90% level of confidence, and a population standard deviation of 0.68 ounce, does it seem possible that the population mean could be exactly 128 ounces? Explain. Click here to view page 1 of the Standard Normal Table. Click here to view page 2 of the Standard Normal Table. (a) The minimum sample size required to construct a 90% confidence interval is (Round up to the nearest whole number.) (b) The 90% confidence interval for a sample size of 8 is (). It interval. (Round to two decimal places as needed.). cans. (...) seem possible that the population Snean could be exactly 128 ounces because 128 ounces falls the confidence

A paint manufacturer uses a machine to fill gallon cans with paint (1 gal = 128 ounces). The manufacturer wants to estimate the mean volume of paint the machine is putting in the cans within 0.5 ounce. Assume the population of volumes is normally distributed. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.68 ounce. (b) The sample mean is 127.5 ounces. With a sample size of 8, a 90% level of confidence, and a population standard deviation of 0.68 ounce, does it seem possible that the population mean could be exactly 128 ounces? Explain. Click here to view page 1 of the Standard Normal Table. Click here to view page 2 of the Standard Normal Table. (a) The minimum sample size required to construct a 90% confidence interval is (Round up to the nearest whole number.) (b) The 90% confidence interval for a sample size of 8 is (). It interval. (Round to two decimal places as needed.). cans. (...) seem possible that the population Snean could be exactly 128 ounces because 128 ounces falls the confidence

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 58CR
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A paint manufacturer uses a machine to fill gallon cans with paint (1 gal = 128 ounces). The manufacturer wants to estimate the mean volume of paint the machine is putting in the cans within 0.5 ounce. Assume the population of volumes is normally distributed. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.68 ounce. (b) The sample mean is 127.5 ounces. With a sample size of 8, a 90% level of confidence, and a population standard deviation of 0.68 ounce, does it seem possible that the population mean could be exactly 128 ounces? Explain. Click here to view page 1 of the Standard Normal Table. Click here to view page 2 of the Standard Normal Table. (a) The minimum sample size required to construct a 90% confidence interval is (Round up to the nearest whole number.) (b) The 90% confidence interval for a sample size of 8 is (,). It interval. (Round to two decimal places as needed.) cans. seem possible that the population Inean could be exactly 128 ounces because 128 ounces falls the confidence
Transcribed Image Text:A paint manufacturer uses a machine to fill gallon cans with paint (1 gal = 128 ounces). The manufacturer wants to estimate the mean volume of paint the machine is putting in the cans within 0.5 ounce. Assume the population of volumes is normally distributed. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.68 ounce. (b) The sample mean is 127.5 ounces. With a sample size of 8, a 90% level of confidence, and a population standard deviation of 0.68 ounce, does it seem possible that the population mean could be exactly 128 ounces? Explain. Click here to view page 1 of the Standard Normal Table. Click here to view page 2 of the Standard Normal Table. (a) The minimum sample size required to construct a 90% confidence interval is (Round up to the nearest whole number.) (b) The 90% confidence interval for a sample size of 8 is (,). It interval. (Round to two decimal places as needed.) cans. seem possible that the population Inean could be exactly 128 ounces because 128 ounces falls the confidence
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