a. Calculate the mean and range for the above samples. (Round "Mean" to 2 decimal places and "Range" to the nearest whole number.)
a. Calculate the mean and range for the above samples. (Round "Mean" to 2 decimal places and "Range" to the nearest whole number.)
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 can't figure out what I did wrong with the solutions I found that have x's beside them. Please help. 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
SAMPLE
NUMBER
2
3
4
2
6
7
3
8
9
10
RECRES
11
12
13
14
15
READINGS (IN CHMS)
1094
1013
991
991
1897
978
976
5
6
7
8
9
10
11
12
13
14
15
1016
977
986
1026
1817
1010
987
994
1016
1011
Sample Number
1
983
988
1030
1023
982
1030
1017
983
1004
1018
995
982
981
994 1008
1020
1001
1004
995 1015 1826
978
984
988
a. Calculate the mean and range for the above samples. (Round "Mean" to 2 decimal places and "Range" to the nearest whole
number.)
1026
1014
995
1014
978
1027
1017
1007
1030
974
995
995
978
1004 1028
1012 1019 983 990
Mean
1,050.00
998.25
998.00
1,011.00
986.25
1,013.50
780.00 X
1,003.00
998.25
1,003.00
1,007.50
1,002.25
991.00
999.25
1,001.00
Range
114
36
54
32
46
44
43
36
29
33
32
52
33
58
36

Transcribed Image Text:b. Determine X and R. (Round your answers to 3 decimal places.)
X
R
989.483 x
45.200
c. Determine the UCL and LCL for a X chart. (Round your answers to 3 decimal places.)
UCL
LCL
1,022.479 x
956.487 x
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