Referring to Exercise 12.6, use the (U) statistic at the 0.05 level of significance to test whether

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Referring to Exercise 12.6, use the $U$ statistic at the 0.05 level of significance to test whether weight loss using lubricant A tends to be less than the loss using lubricant $\mathrm{B}$.

Data From Exercise 12.6

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Probability And Statistics For Engineers

ISBN: 9780134435688

9th Global Edition

Authors: Richard Johnson, Irwin Miller, John Freund

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Referring to Exercise 12.6, use the (U) statistic at the 0.05 level of significance to test whether

Question:

12.6 With reference to the example on page 389, suppose one additional observation y25 = 8 is available us- ing formula B. Construct the analysis of variance table and test the equality of the mean curing times using = 0.05.

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Probability And Statistics For Engineers

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