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Question
Coach Z, the mid-distance running coach for the Olympic team of an eastern European country, claims that his six-month training program significantly reduces the average time to complete a 1500-meter run. Five mid-distance runners were randomly selected. Their times (in minutes) for the 1500-meter run were recorded before and after six months of training under Coach Z. The results are given below.
Construct the appropriate 95 percent confidence interval when we want to test whether there is a difference (sd = .228).
Answer
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A. average
B. median
C. sum
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A. Wilcoxon rank sum test
B. Kruskal-Wallis H test
C. Wilcoxon signed ranks test
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Q:
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Q:
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Q:
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Q:
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Q:
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Q:
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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Control charts are used to reduce common causes of variation.
Q:
A sequence of steadily decreasing points on a control chart is called run down.
Q:
How well the design of the product meets and exceeds the needs and expectations of the customers is called the quality of performance.
Q:
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Q:
An chart is a control chart on which individual process measurements are plotted versus time.
Q:
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