Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is… 1 answer below »
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. 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 value are as follows:
SAMPLE NUMBER
READINGS (IN OHMS)
1
1010
991
985
986
2
995
996
1009
994
3
990
1003
1015
1008
4
1015
1020
1009
998
5
1013
1019
1005
993
6
994
1001
994
1005
7
989
992
982
1020
8
1001
986
996
996
9
1006
989
1005
1007
10
992
1007
1006
979
11
996
1006
997
989
12
1019
996
991
1011
13
981
991
989
1003
14
999
998
988
984
15
1013
1002
1005
992
Develop an X chart and an R chart and plot the values. From the charts, what comments can you make about the process? (Use three-sigma control limits as in Exhibit TN8.7.)
