The Business College Computing Center Wants to Determine the Proportion

question 97

Multiple Choice

The business college computing center wants to determine the proportion of business students who havepersonal computers (PCʹs) at home. If the proportion exceeds 30%, then the lab will scale back a proposedenlargement of its facilities. Suppose 300 business students were randomly sampled and 65 have PCʹs at home.What assumptions are necessary for this test to be satisfied?

• A) No assumptions are necessary.
• B) The sample variance equals the population variance.
• C) The population has an approximately normal distribution.
• D) The sample mean equals the population mean.

---

Definitions:

Confidence Interval Estimate

Rephrased and new definition: A statistical technique that calculates the range within which an unknown population parameter lies, based on sample data, with a specified level of confidence.

Gadd Severity Index

A scoring system used to assess the severity of an individual's criminal history or offenses.

True Population Proportion

The actual fraction or percentage of a specific characteristic within an entire population.

Vitamin D Supplements

Products taken to increase the amount of Vitamin D in the body, which is important for maintaining bone health.