The Shaded Bars in the Histogram Below Represent the Times

question 13

Multiple Choice

The shaded bars in the histogram below represent the times (rounded to the nearest 10 milliseconds) that 50 people take to react to a loud noise.Which of the following statements is true?

• A)The distribution of reaction times is positively skewed.
• B)The modal reaction time is 250 ms.
• C)The median reaction time is less than 250 ms.
• D)The mean reaction time will be less than the modal reaction time.
• E)The mean is an unambiguous measure of central tendency.

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Definitions:

Functional Job Analysis

A method of job analysis that describes a job in terms of the tasks performed and the competencies required to perform those tasks.

Job Analysis Method

A systematic process used to identify the duties, responsibilities, and requirements of a specific job.

Organizations

Groups of people structured systematically to achieve specific goals or perform specific tasks.

Time-And-Motion Study

An analysis designed to optimize productivity by studying the tasks within a job, to reduce inefficiency and increase effective use of human effort.