We Are Interested in Testing Whether the Variance of a Population

question 16

Multiple Choice

We are interested in testing whether the variance of a population is significantly less than 1.44. The null hypothesis for this test is

• A)H_o:² < 1.44
• B)H_o: s² \(\ge\) 1.44
• C)H_o:\(\le\) 1.20
• D)H_o:² \(\ge\) 1.44

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Definitions:

Standard Time

The established duration within which a task or operation should be completed, often used in productivity measurement and workforce planning.

Worker Performance Ratings

Evaluations that measure the effectiveness and efficiency of an employee's work output and quality.

Worker Fatigue

Physical or mental exhaustion experienced by workers, which can reduce efficiency, productivity, and safety in the workplace.

Allowance Factor

A factor applied in planning and design processes to account for potential deviations from standard or expected conditions, ensuring extra capacity or tolerance.