A methods and measurements analyst needs to develop a time standard for a certain task. In a preliminary study, he observed one of his workers perform this task five times, with the following results:
What is the standard time for this task if the employee worked at a 25 percent faster pace than average and an allowance of 20 percent of job time is used?
Definitions:
Sample Size
Refers to the number of observations or participants included in a statistical sample.
Type I Error
The incorrect rejection of a true null hypothesis, or a false positive, in statistical hypothesis testing.
Population Means
The average values of a particular characteristic for all individuals or elements within a defined population.
Confidence Interval
A spectrum of values calculated from sample data, anticipated to surround the value of an unexpressed population parameter.
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