A Sample Is Used to Obtain a 95% Confidence Interval

question 75

True/False

A sample is used to obtain a 95% confidence interval for the mean of a population.The confidence interval goes from 15 to 19.If the same sample had been used to test the null hypothesis that the mean of the population is equal to 20 versus the alternative hypothesis that the mean of the population differs from 20,the null hypothesis could be rejected at a level of significance of 0.02.

---

Definitions:

Fixed Manufacturing Overhead

Indirect manufacturing costs that remain constant regardless of the level of production, such as salaries of supervisors and rent.

Machine-hours

A measure of production time, calculated by the number of hours a machine is operated in the production of goods.

Predetermined Overhead Rate

An estimated rate used to allocate manufacturing overhead costs to products, based on a planned level of activity.

Direct Labor-hours

The sum of hours logged by workers directly engaged in creating products.