d. Determine the UCL and LCL for R-chart. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 3 decimal places.) UCL LCL e. What comments can you make about the process? O The process is out of statistical control. O The process is in statistical control.
d. Determine the UCL and LCL for R-chart. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 3 decimal places.) UCL LCL e. What comments can you make about the process? O The process is out of statistical control. O The process is in statistical control.
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...
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I need help with part d and e. thank you.

Transcribed Image Text:Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up to produce a large run of
resistors of 1,000 ohms each. Use Exhibit 13.7.
To set up the machine and to create a control chart to be used throughout the run, 15 samples were taken with four resistors in each
sample. The complete list of samples and their measured values are as follows. Use three-sigma control limits.
1
2
3
4
5
6
7
SAMPLE
NUMBER
1
2
8
9
10
11
3
4
5
12
13
6
7
14
15
8
9
10
11
12
13
14
a. Calculate the mean and range for the above samples. (Round "Mean" to 2 decimal places and "Range" to the nearest whole
number.)
15
READINGS (IN OHMS)
1094
983
1026
1013
988
1014
991
1030
995
991 1023 1014
982
970
1016
986 1811 1030
1027
1826
983
1817
1004
1817 1018
995
982
994 1008
1897
978
976
1016
977
1010
987
994
981
1820 1001
1004
995 1015 1026
984
1030
978 1017
974
995 1007 988
995
970 1004 1028
1012 1019 983 990
Sample Number
Mean
Range

Transcribed Image Text:b. Determine X and R. (Round your answers to 3 decimal places.)
X
R
c. Determine the UCL and LCL for a X chart. (Round your answers to 3 decimal places.)
UCL
LCL
d. Determine the UCL and LCL for R-chart. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to
3 decimal places.)
UCL
LCL
e. What comments can you make about the process?
O The process is out of statistical control.
O The process is in statistical control.
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