Question

Michelson actually made 100 measurements on the velocity of light in five trials of 20 observations each. The second set of 20 measurements is shown in Table 6E.28
(a) Plot these new measurements on the control charts constructed in Exercise 6.69. Are these new measurements in statistical control? Give a practical interpretation of the control charts.
(b) Is there evidence that the variability in the measurements has decreased between trial 1 and trial 2?


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  • CreatedNovember 06, 2015
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