At Quick Car Wash, the wash process is advertised to take less than 7 minutes. Consequently, management has set a target average of 390 seconds for the wash process. Suppose the average range for a sample of 9 cars is 8 seconds. Use the accompanying table to establish control limits for sample means and ranges for the car wash process. LOADING... Click the icon to view the table of factors for calculating three-sigma limits for the x overbarx-chart and R-chart. Factors for calculating three-sigma limits for the x overbarx-chart and R-chart Size of Sample (n) Factor for UCL and LCL for x overbarx-chart (Upper A 2A2) Factor for LCL for R-Chart (Upper D 3D3) Factor for UCL for R-Chart (Upper D 4D4) 2 1.8801.880 00 3.2673.267 3 1.0231.023 00 2.5752.575 4 0.7290.729 00 2.2822.282 5 0.5770.577 00 2.1152.115 6 0.4830.483 00 2.0042.004 7 0.4190.419 0.0760.076 1.9241.924 8 0.3730.373 0.1360.136 1.8641.864 9 0.3370.337 0.1840.184 1.8161.816 10 0.3080.308 0.2230.223 1.7771.777 Part 2 The UCL Subscript Upper RUCLR equals seconds and the LCL Subscript Upper RLCLR equals seconds. (Enter your responses rounded to two decimal places.) The UCL Subscript Upper RUCLR equals 14.53 seconds and the LCL Subscript Upper RLCLR equals 1.47 seconds. (Enter your responses rounded to two decimal places.) Part 3 The UCL Subscript x overbarUCLx equals enter your response here seconds and the LCL Subscript x overbarLCLx equals enter your response here seconds. (Enter your responses rounded to two decimal places.)
At Quick Car Wash, the wash process is advertised to take less than 7 minutes. Consequently, management has set a target average of 390 seconds for the wash process. Suppose the average range for a sample of 9 cars is 8 seconds. Use the accompanying table to establish control limits for sample means and ranges for the car wash process. LOADING... Click the icon to view the table of factors for calculating three-sigma limits for the x overbarx-chart and R-chart. Factors for calculating three-sigma limits for the x overbarx-chart and R-chart Size of Sample (n) Factor for UCL and LCL for x overbarx-chart (Upper A 2A2) Factor for LCL for R-Chart (Upper D 3D3) Factor for UCL for R-Chart (Upper D 4D4) 2 1.8801.880 00 3.2673.267 3 1.0231.023 00 2.5752.575 4 0.7290.729 00 2.2822.282 5 0.5770.577 00 2.1152.115 6 0.4830.483 00 2.0042.004 7 0.4190.419 0.0760.076 1.9241.924 8 0.3730.373 0.1360.136 1.8641.864 9 0.3370.337 0.1840.184 1.8161.816 10 0.3080.308 0.2230.223 1.7771.777 Part 2 The UCL Subscript Upper RUCLR equals seconds and the LCL Subscript Upper RLCLR equals seconds. (Enter your responses rounded to two decimal places.) The UCL Subscript Upper RUCLR equals 14.53 seconds and the LCL Subscript Upper RLCLR equals 1.47 seconds. (Enter your responses rounded to two decimal places.) Part 3 The UCL Subscript x overbarUCLx equals enter your response here seconds and the LCL Subscript x overbarLCLx equals enter your response here seconds. (Enter your responses rounded to two decimal places.)
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
Related questions
Question
At Quick Car Wash, the wash process is advertised to take less than
7
minutes. Consequently, management has set a target average of
390
seconds for the wash process. Suppose the average range for a sample of
9
cars is
8
seconds. Use the accompanying table to establish control limits for sample means and ranges for the car wash process.LOADING...
x overbarx-chart
and R-chart.Factors for calculating three-sigma limits for the
x overbarx-chart
and R-chart|
Size of Sample (n)
|
Factor for UCL and LCL for
x overbarx-chart
(Upper A 2A2)
|
Factor for LCL for R-Chart
(Upper D 3D3)
|
Factor for UCL for R-Chart
(Upper D 4D4)
|
|
2
|
1.8801.880
|
00
|
3.2673.267
|
|
3
|
1.0231.023
|
00
|
2.5752.575
|
|
4
|
0.7290.729
|
00
|
2.2822.282
|
|
5
|
0.5770.577
|
00
|
2.1152.115
|
|
6
|
0.4830.483
|
00
|
2.0042.004
|
|
7
|
0.4190.419
|
0.0760.076
|
1.9241.924
|
|
8
|
0.3730.373
|
0.1360.136
|
1.8641.864
|
|
9
|
0.3370.337
|
0.1840.184
|
1.8161.816
|
|
10
|
0.3080.308
|
0.2230.223
|
1.7771.777
|
Part 2
The
seconds and the
seconds. (Enter your responses rounded to two decimal places.)
UCL Subscript Upper RUCLR
equals
LCL Subscript Upper RLCLR
equals
The
UCL Subscript Upper RUCLR
equals
14.53
seconds and the
LCL Subscript Upper RLCLR
equals
1.47
seconds. (Enter your responses rounded to two decimal places.)Part 3
The
UCL Subscript x overbarUCLx
equals
enter your response here
seconds and the
LCL Subscript x overbarLCLx
equals
enter your response here
seconds. (Enter your responses rounded to two decimal places.)AI-Generated Solution
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