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5. A). Find the 99% confidence interval for the mean of the normal distribution: 660, 667, 654, 663, 662 B). Eight samples of size 2 were taken from many screws. The screw lengths (inches) were: Sample# 2 4 7 8 3.50 3.51 3.49 3.52 3.53 3.49 3.48 3.52 Length 1* set 2nd set 3.51 3.48 3.50 3.50 3.49 3.50 3.47 3.49 Assuming the population is normal with mean 3.500 and variance 0.0004, set up the control chart (LCL and UCL) for the mean. Also set up the control charts (LCL and UCL) for the variance and standard deviation assuming a = 5%.

5. A). Find the 99% confidence interval for the mean of the normal distribution: 660, 667, 654, 663, 662 B). Eight samples of size 2 were taken from many screws. The screw lengths (inches) were: Sample# 2 4 7 8 3.50 3.51 3.49 3.52 3.53 3.49 3.48 3.52 Length 1* set 2nd set 3.51 3.48 3.50 3.50 3.49 3.50 3.47 3.49 Assuming the population is normal with mean 3.500 and variance 0.0004, set up the control chart (LCL and UCL) for the mean. Also set up the control charts (LCL and UCL) for the variance and standard deviation assuming a = 5%.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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5. A). Find the 99% confidence interval for the mean of the normal distribution: 660, 667, 654, 663, 662 B). Eight samples of size 2 were taken from many screws. The screw lengths (inches) were: 1 2 3 4 5 7 Sample# 3.50 3.51 3.49 3.52 3.53 3.49 3.48 3.52 Length 1* set 2nd set 3.51 3.48 3.50 3.50 3.49 3.50 3.47 3.49 Assuming the population is normal with mean 3.500 and variance 0.0004, set up the control chart (LCL and UCL) for the mean. Also set up the control charts (LCL and UCL) for the variance and standard deviation assuming a = 5%.
Transcribed Image Text:5. A). Find the 99% confidence interval for the mean of the normal distribution: 660, 667, 654, 663, 662 B). Eight samples of size 2 were taken from many screws. The screw lengths (inches) were: 1 2 3 4 5 7 Sample# 3.50 3.51 3.49 3.52 3.53 3.49 3.48 3.52 Length 1* set 2nd set 3.51 3.48 3.50 3.50 3.49 3.50 3.47 3.49 Assuming the population is normal with mean 3.500 and variance 0.0004, set up the control chart (LCL and UCL) for the mean. Also set up the control charts (LCL and UCL) for the variance and standard deviation assuming a = 5%.
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