A Company That Produces Computers Recently Tested the Battery in Its

question 69

Multiple Choice

A company that produces computers recently tested the battery in its latest laptop in six separate trials.The battery lasted 8.23,7.89,8.14,8.25,8.30,and 7.95 hours before burning out in each of the tests.Assuming the battery duration is normally distributed,construct a 95% confidence interval for the mean battery life in the new model.

• A) [7.9489,8.3045]
• B) [7.9575,8.2959]
• C) [7.9873,8.2661]
• D) [7.9912,8.2622]

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Definitions:

Total Variable Costs

The total of all costs that vary with the level of output, including costs for raw materials, labor, and energy, in the production process.

Average Fixed Costs

Fixed costs divided by the quantity of output produced, indicating the fixed cost per unit of output.

Constant Returns to Scale

The situation in which a proportional increase in all inputs leads to an equal proportional increase in output.

Wage Rate

The standard amount of compensation paid to an employee per unit of time worked, typically expressed on an hourly or monthly basis.