Find the Minimum Sample Size When We Want to Construct

question 109

Multiple Choice

Find the minimum sample size when we want to construct a 95% confidence interval on the population proportion for the support of candidate A in the following mayoral election. Candidate A is facing two opposing candidates. In a preselected poll of 100 residents, 22 supported candidate B and 14 supported candidate C. The desired margin of error is 0.06.

• A) n = 173
• B) n = 174
• C) n = 245
• D) n = 246

---

Definitions:

Periodic Inventory System

An inventory system that updates inventory records and calculates cost of goods sold at the end of a reporting period, rather than continuously.

LIFO

Last In, First Out refers to an approach for evaluating inventory in which the items that were produced last are considered to be the first ones sold.

Weighted-Average Cost

A calculation used in inventory management and cost accounting that takes into account the varying costs of goods and determines an average cost for the goods sold.

Periodic Inventory System

An inventory system that updates inventory balances after a specific period, calculating COGS by a physical count.