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This exercise contains only parts a and b. a) For the given data, the x = hours (round your response to three decimal places).

This exercise contains only parts a and b. a) For the given data, the x = hours (round your response to three decimal places).

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not lasting as long as other name brands. James West, head of the TQM program at West's Austin plant, believes there is no problem because his batteries have had an average life of 55 hours, about 10% longer than competitors' models. To raise the lifetime above this level would require a new level of technology not available to West. Nevertheless, he is concerned enough to set up hourly assembly line checks. Previously, after ensuring that the process was running properly, West took samples of 5 9-volt batteries for 25 test to establish the standards for control chart limits. Those 25 tests are shown in the following table: Sample Data Sample Data Hour Sample Taken 1 2 1234567 This exercise contains only parts a and b. 7 8 9 10 11 12 13 3 4 57 54 46 56 49 53 63 50 55 40 53 44 61 76 56 46 54 44 58 57 64 67 55 59 41 37 53 52 55 71 58 47 48 57 51 51 74 49 56 53 61 59 67 50 42 60 58 51 47 66 45 76 62 49 48 56.0 5 56 60 52 55 51 69 62 44 49 45 IX R 11 14 15 30 14 14 25 27 929 25 19 31 22222 53.8 55.0 48.8 58.8 52.8 62.8 49.0 55.0 51.2 55.4 55.8 56.4 Hour Sample Taken 1 a) For the given data, the x = hours (round your response to three decimal places). 2 63 47 53 43 56 58 55 57 51 60 44 51 52 55 56 25 56 55 14 58 62 16 68 15 17 44 18 70 62 20 65 19 21 23 24 3 44 57 47 54 47 56 46 54 61 55 53 56 4 56 64 39 65 5558888 63 53 45 62 53 56 56 5 50 63 x 54.2 58.6 53.6 52.0 61 54 56 58.4 55 56.8 54 53.0 53.6 44 51 53.8 52 53.2 55.2 58.2 57 68 R612 19 17 29 22 23 9 20 18 17 5 4 13
Transcribed Image Text:West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not lasting as long as other name brands. James West, head of the TQM program at West's Austin plant, believes there is no problem because his batteries have had an average life of 55 hours, about 10% longer than competitors' models. To raise the lifetime above this level would require a new level of technology not available to West. Nevertheless, he is concerned enough to set up hourly assembly line checks. Previously, after ensuring that the process was running properly, West took samples of 5 9-volt batteries for 25 test to establish the standards for control chart limits. Those 25 tests are shown in the following table: Sample Data Sample Data Hour Sample Taken 1 2 1234567 This exercise contains only parts a and b. 7 8 9 10 11 12 13 3 4 57 54 46 56 49 53 63 50 55 40 53 44 61 76 56 46 54 44 58 57 64 67 55 59 41 37 53 52 55 71 58 47 48 57 51 51 74 49 56 53 61 59 67 50 42 60 58 51 47 66 45 76 62 49 48 56.0 5 56 60 52 55 51 69 62 44 49 45 IX R 11 14 15 30 14 14 25 27 929 25 19 31 22222 53.8 55.0 48.8 58.8 52.8 62.8 49.0 55.0 51.2 55.4 55.8 56.4 Hour Sample Taken 1 a) For the given data, the x = hours (round your response to three decimal places). 2 63 47 53 43 56 58 55 57 51 60 44 51 52 55 56 25 56 55 14 58 62 16 68 15 17 44 18 70 62 20 65 19 21 23 24 3 44 57 47 54 47 56 46 54 61 55 53 56 4 56 64 39 65 5558888 63 53 45 62 53 56 56 5 50 63 x 54.2 58.6 53.6 52.0 61 54 56 58.4 55 56.8 54 53.0 53.6 44 51 53.8 52 53.2 55.2 58.2 57 68 R612 19 17 29 22 23 9 20 18 17 5 4 13
Sample Size, n 2 3 4 5 6 7 8 9 10 12 Mean Factor, A₂ 1.880 1.023 0.729 0.577 0.483 0.419 0.373 0.337 0.308 0.266 Print Upper Range, DA 3.268 2.574 2.282 2.115 2.004 1.924 1.864 1.816 1.777 1.716 Done Lower Range, D3 0 0 0 0 0 0.076 0.136 0.184 0.223 0.284
Transcribed Image Text:Sample Size, n 2 3 4 5 6 7 8 9 10 12 Mean Factor, A₂ 1.880 1.023 0.729 0.577 0.483 0.419 0.373 0.337 0.308 0.266 Print Upper Range, DA 3.268 2.574 2.282 2.115 2.004 1.924 1.864 1.816 1.777 1.716 Done Lower Range, D3 0 0 0 0 0 0.076 0.136 0.184 0.223 0.284
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