A Methods and Measurement Analyst Wants to Develop a Time

question 38

Multiple Choice

A methods and measurement analyst wants to develop a time standard for a certain task. In a preliminary study, he observed one worker perform the task six times with an average observed time of 20 seconds and a standard deviation of two seconds.
What is the standard time for this task if the employee worked at a 20 percent faster pace than average, and an allowance of 25 percent of job time is used?

• A) 20 seconds
• B) 25 seconds
• C) 26.7 seconds
• D) 30 seconds
• E) 32 seconds

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Definitions:

Degrees of Freedom

Refers to the number of independent values or quantities which can be assigned to a statistical distribution or a statistical test.

DfBG

Degree of Freedom Between Groups, a statistical parameter used in ANOVA to determine the variability among group means.

DfWG

Degrees of freedom within groups, referring to the number of independent values in the calculation of variance within groups.

One-way ANOVA

A statistical test that assesses whether there are significant differences between the means of three or more independent groups.