Random Samples of Size 36 Are Taken from a Process

question 14

Multiple Choice

Random samples of size 36 are taken from a process (an infinite population) whose mean and standard deviation are 20 and 15, respectively. The distribution of the population is unknown. The mean and the standard error of the distribution of sample mean are _____.

• A) 36 and 15
• B) 20 and 15
• C) 20 and 0.417
• D) 20 and 2.5

---

Definitions:

Manufacturing Overhead

Indirect costs associated with manufacturing, not directly tied to specific product units, such as equipment maintenance, factory rent, and management salaries.

Finished Goods

The final products that have completed the manufacturing process and are ready for sale.

Direct Labour Wage Rate

The hourly rate paid to workers directly involved in the production of goods or services.

Overhead Rate

The ratio of overhead costs to the base cost, used to allocate overhead to products or services.