For a Time Study, the Three Factors That Determine How

question 116

Multiple Choice

For a time study, the three factors that determine how large a sample size to take are

• A) the level of confidence, the z-value, and normal time
• B) needed accuracy, desired confidence, and standard deviation of the initial sample
• C) the level of confidence, the z-value, and the work sampling idle percent
• D) actual time, normal time, and standard time
• E) actual time, standard time, and mean time

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Definitions:

Wilcoxon Rank-sum Test

A nonparametric test that compares two independent samples to assess whether their population mean ranks differ, used when data are not normally distributed.

Wilcoxon Rank Sum Test

A non-parametric statistical test used to compare two independent samples to determine if they come from the same population.

Wilcoxon Rank Sum Test

A nonparametric statistical test used to compare two independent groups to assess whether their populations have the same distribution.

Alternative Hypothesis

The hypothesis that proposes a difference or effect, in contrast to the null hypothesis, which assumes no effect or difference.