Past Experience Indicates That the Variance in the Time It

question 37

Multiple Choice

Past experience indicates that the variance in the time it takes for a "fast lube" operation to actually complete the lube and oil change for customers is 9.00 minutes. The manager wishes to estimate the mean time with 99 percent confidence and a margin of error of ± 0.50 minutes. Given this, what must the sample size be?

• A) n = 239
• B) n = 2149
• C) n = 139
• D) n = 1245

---

Definitions:

Addictions

Compulsive engagement in rewarding stimuli, despite adverse consequences.

Quit Smoking

The process of discontinuing tobacco smoking, which can lead to improved health outcomes and reduced risk of smoking-related diseases.

Chronic Illness

A long-term health condition that may not have a cure, requiring ongoing management and care.

Disability

A physical or mental condition that limits a person's movements, senses, or activities, affecting their daily life and participation in society.