Which of the Following Would Be an Appropriate Null Hypothesis $H_{0}: \bar{X}=0.653$

question 31

Multiple Choice

Which of the following would be an appropriate null hypothesis for the one-sample t test of the hypothesis that the mean reaction time of a population of 45 year-old drivers is 0.653 seconds?

• A) \( H_{0}: \bar{X}=0.653 \)
• B) \( H_{0}: \bar{X} \neq 0.653 \)
• C) \( H_{0}: \mu=0.653 \)
• D) \( H_{0}: \mu \neq 0.653 \)

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Definitions:

Direct Labor-hour

A measure of the work done by labor in producing goods, calculated as the total hours of direct labor expended on the production of goods.

Predetermined Overhead Rate

A rate established in advance for allocating overhead costs to products or job orders, based on an estimated level of activity.

Direct Labor-hour

A measure of labor input based on the time workers spend on a specific task or product.

Direct Labor Cost

The total cost of all labor directly involved in the production of goods or services, excluding indirect expenses such as managerial salaries.