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A Company That Provides Service of Repairs of Refrigerators Has

question 26

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A company that provides service of repairs of refrigerators has noticed that their overall performance has been declining over the past 3 years.They are interested in increasing the performance of the entire team of service personnel,including measurements of time and cost of repair visits.Which of the following is correct?


Definitions:

Variable Increases

Situations or conditions where a measurable factor or quantity grows in magnitude or intensity.

Test-retest

A method used in psychological testing where the same test is administered to the same subjects at two different points in time to assess consistency.

Reliability

The consistency and dependability of a measure or test over time and across different conditions or administrations.

Variability of Data Set

The degree to which the numbers in a data set differ from each other and from their average; a measure of the spread or dispersion within the given information.

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