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Question
Find z when the area to the left of z is .6700.
A. 0.75
B. 0.44
C. -0.44
D. -0.75
Answer
This answer is hidden. It contains 7 characters.
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An assumption of the Wilcoxon rank sum test is that the variances of the two populations are equal.
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Nonparametric tests can be more powerful than the corresponding t or F tests if the population distribution is highly skewed or nonnormal.
Q:
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Q:
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If a company is using an chart for a given process with measurement data, it is generally not important or necessary to use an R chart or s chart.
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An chart is a control chart on which individual process measurements are plotted versus time.
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