A Methods and Measurement Analyst Wants to Develop a Time

question 110

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 normal time for this task if the employee worked at a 20 percent faster pace than average?

• A) 4 seconds
• B) 16.7 seconds
• C) 20 seconds
• D) 24 seconds
• E) 100 seconds

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Definitions:

Null Hypotheses

A statement that assumes there is no significant difference or effect in a population, and any observed difference is due to sampling or experimental error.

p-value

A measure used in statistical hypothesis testing to determine the significance of the observed data under a specific hypothesis, often testing if an effect exists.

Standard Deviation

A technique for quantifying the degree of variation or gap among a batch of numbers.

Random Sample

A random sample is a subset of individuals chosen from a larger population where each member has an equal chance of being selected, ensuring the representativeness of the sample.