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The net weight (in oz) of a dry bleach product is to be monitored by F and R control charts using a sam- ple size of n = 5. Data for 20 preliminary samples are shown in Table 6E.7. (a) Set up ī and R control charts using these data. Does the process exhibit statistical control? (b) Estimate the process mean and standard deviation. (c) Does fill weight seem to follow a normal distri- bution? (d) If the specifications are at 16.2 ± 0.5, what conclusions would you draw about process capability? (e) What fraction of containers produced by this process is likely to be below the lower specifi- cation limit of 15.7 oz?

The net weight (in oz) of a dry bleach product is to be monitored by F and R control charts using a sam- ple size of n = 5. Data for 20 preliminary samples are shown in Table 6E.7. (a) Set up ī and R control charts using these data. Does the process exhibit statistical control? (b) Estimate the process mean and standard deviation. (c) Does fill weight seem to follow a normal distri- bution? (d) If the specifications are at 16.2 ± 0.5, what conclusions would you draw about process capability? (e) What fraction of containers produced by this process is likely to be below the lower specifi- cation limit of 15.7 oz?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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6.12. The net weight (in oz) of a dry bleach product is to be monitored by ī and R control charts using a sam- ple size of n = 5. Data for 20 preliminary samples are shown in Table 6E.7. (a) Set up ī and R control charts using these data. Does the process exhibit statistical control? (b) Estimate the process mean and standard deviation. (c) Does fill weight seem to follow a normal distri- bution? (d) If the specifications are at 16.2 ± 0.5, what conclusions would you draw about process capability? (e) What fraction of containers produced by this process is likely to be below the lower specifi- cation limit of 15.7 oz?
Transcribed Image Text:6.12. The net weight (in oz) of a dry bleach product is to be monitored by ī and R control charts using a sam- ple size of n = 5. Data for 20 preliminary samples are shown in Table 6E.7. (a) Set up ī and R control charts using these data. Does the process exhibit statistical control? (b) Estimate the process mean and standard deviation. (c) Does fill weight seem to follow a normal distri- bution? (d) If the specifications are at 16.2 ± 0.5, what conclusions would you draw about process capability? (e) What fraction of containers produced by this process is likely to be below the lower specifi- cation limit of 15.7 oz?
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