An Auto Mechanic Knows the Average Time It Takes to Replace

question 20

Short Answer

An auto mechanic knows the average time it takes to replace a bad car radiator is 70 minutes with a standard deviation of 12 minutes. This average is based on a random sample of 50. Construct a 90% confidence interval for .
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Definitions:

Incentive to Change

Factors or motives that encourage individuals or organizations to modify their behavior or decisions.

Equitable Distribution

a principle aiming for a fair allocation of resources, wealth, or income among members of a society.

Efficient

Refers to the optimal use of resources to achieve the desired ends with minimal waste or effort.

Income

The amount of money received by an individual or entity in exchange for labor or through investments over a certain period.