In a Manufacturing Facility Producing Fasteners,a Foreman Suspects That the Diameter

question 25

Multiple Choice

In a manufacturing facility producing fasteners,a foreman suspects that the diameter of the bolt produced by his second shift workers is greater than the diameter of the bolts produced by his first shift workers.He takes a sample of 5 bolts from the first shift and a sample of 4 bolts from the second shift and measures the diameters in inches.Distribution of bolt diameter measurements is not normally distributed.Which one of the following nonparametric tests is appropriate for this problem?

• A)Wilcoxon signed rank test
• B)Wilcoxon rank sum test
• C)Sign test
• D)Kruskal-Wallis test
• E)Spearman's rank correlation test

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