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Question
A foreman wants to use an
chart to control the average length of the bolts manufactured. He has recently collected the six samples given below.Sample
1 1.99 2.01 2.02 2.02
2 2.00 2.00 2.01 2.01
3 1.98 1.99 2.01 1.98
4 2.01 2.02 2.02 1.99
5 1.99 1.99 2.01 1.99
6 2.03 1.98 2.03 2.04
Calculate the mean of the means(
).A. 2.010
B. 2.406
C. 2.000
D. 2.005
Answer
This answer is hidden. It contains 2 characters.
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