A Random Sample of 150 Employees Was Selected

question 44

Multiple Choice

A random sample of 150 employees was selected. There are 60 employees older than 30 in the sample. Estimate the proportion of all employees of the company who are older than 30 with a 50% confidence. ​

• A) We can be 50% confident that the true proportion of all employees of the company who are older than 30 is 0.4.
• B) We can be 50% confident that the true proportion of all employees of the company who are older than 30 falls within the interval (0.334, 0.466).
• C) We can be 50% confident that the true proportion of all employees of the company who are older than 30 falls within the interval (0.322, 0.478).
• D) We can be 50% confident that the true proportion of all employees of the company who are older than 30 falls within the interval (0.38, 0.42).
• E) We can be 50% confident that the true proportion of all employees of the company who are older than 30 falls within the interval (0.36, 0.44).

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Definitions:

Directly Traced

Refers to costs or expenses that can be directly linked to a specific product, service, or department.

Product Costs

Expenses directly incurred from the manufacturing of products, including direct materials, direct labor, and manufacturing overhead.

Manufacturing Margin

The difference between the sales revenue of manufactured goods and the cost of their direct materials and direct labor.

Variable Selling

Costs associated with selling a product that vary with the level of sales activity, such as commissions or shipping fees.