Use the Given Information to Find the Minimum Sample Size

question 44

Multiple Choice

Use the given information to find the minimum sample size required to estimate an unknown population mean µ
-How many business students must be randomly selected to estimate the mean monthly earnings of business students at one college? We want 95% confidence that the sample mean is within $131 of the population mean, and the population standard deviation is known to be $529.

• A) 44
• B) 55
• C) 63
• D) 89

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Definitions:

Common Fixed Costs

Costs that remain unchanged in total for a given time period, despite variations in activity level.

Variable Costing

An accounting method that includes only variable costs—costs that change with production level—in product costs, excluding fixed manufacturing overhead.

Absorption Costing

An accounting method that includes all direct and indirect manufacturing costs in the cost of a product.

Product Costs

Expenses directly tied to the production of goods or services, including materials, labor, and overhead costs.