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For numbers 29 and 30: A quality control inspector of SACA Hygiene Products, Inc. would like to estimate the mean thickness of table napkins produced by a machine. The machine is set to produce table napkins with a standard deviation of 20 microns. Thickness of table napkins is normally distributed. 29. How large an error would be committed if the inspector wants to estimate the mean thickness with a 95% confidence based on a simple random sample of 25 napkins from the machine? O A. 1.32 microns B. 6.58 microns O C. 1.57 microns O D. 7.84 microns

For numbers 29 and 30: A quality control inspector of SACA Hygiene Products, Inc. would like to estimate the mean thickness of table napkins produced by a machine. The machine is set to produce table napkins with a standard deviation of 20 microns. Thickness of table napkins is normally distributed. 29. How large an error would be committed if the inspector wants to estimate the mean thickness with a 95% confidence based on a simple random sample of 25 napkins from the machine? O A. 1.32 microns B. 6.58 microns O C. 1.57 microns O D. 7.84 microns

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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For numbers 29 and 30: A quality control inspector of SACA Hygiene Products, Inc. would like to estimate the mean thickness of table napkins produced by a machine. The machine is set to produce table napkins with a standard deviation of 20 microns. Thickness of table napkins is normally distributed. 29. How large an error would be committed if the inspector wants to estimate the mean thickness with a 95% confidence based on a simple random sample of 25 napkins from the machine? A. 1.32 microns B. 6.58 microns C. 1.57 microns O D. 7.84 microns CS Scanned with CamScanner
Transcribed Image Text:For numbers 29 and 30: A quality control inspector of SACA Hygiene Products, Inc. would like to estimate the mean thickness of table napkins produced by a machine. The machine is set to produce table napkins with a standard deviation of 20 microns. Thickness of table napkins is normally distributed. 29. How large an error would be committed if the inspector wants to estimate the mean thickness with a 95% confidence based on a simple random sample of 25 napkins from the machine? A. 1.32 microns B. 6.58 microns C. 1.57 microns O D. 7.84 microns CS Scanned with CamScanner
30. The gap (or width) of a 95% confidence interval for the mean thickness based on a sample of 36 napkins is the gap (or width) of a 95% confidence interval based on a sample of 25 napkins. O A. narrower than O B. wider than C. equal to O D. not related to CS Scanned with CamScaner
Transcribed Image Text:30. The gap (or width) of a 95% confidence interval for the mean thickness based on a sample of 36 napkins is the gap (or width) of a 95% confidence interval based on a sample of 25 napkins. O A. narrower than O B. wider than C. equal to O D. not related to CS Scanned with CamScaner
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