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Question: Management wants to investigate the time it takes to complete a manual assembly task. A sample of 12 workers is timed, yielding the following data (in seconds):

21.3 15.2 13.6 16.1 15.0 19.2 21.0 14.3 15.6 20.1 21.1 22.2

• Find mean and median; do you think that the data are skewed?

• Find the standard deviation.

• What is the percentile rank of the person who took 20.1 seconds to complete the task?

• Find the quartiles, using the second approach that we have described for the calculation of percentiles.

• Suppose that management want to define an acceptable threshold, based on the 90% percentile; all workers taking more than this time are invited to a training session to improve their performance. Find this percentile using the interpolation method.

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Management Theories, Management Studies

Category:- Management Theories
Reference No.:- M92256739

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