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:

Direct Materials

Raw materials and components that are directly used in the production of a product, which can be easily traced and assigned to specific goods.

Direct Labor Costs

Expenses associated with employees who are directly involved in the production of goods or services.

Factory Overhead Account

An account that accumulates all indirect costs associated with manufacturing operations, not directly tied to specific units.

Factory Overhead

All indirect costs associated with manufacturing, including utilities, maintenance, and management salaries, not directly tied to the production of goods.