Test Hypotheses About a Population Proportion
-The Business College Computing $25 \%$

question 89

Multiple Choice

Test Hypotheses about a Population Proportion
-The business college computing center wants to determine the proportion of business students who have personal computers (PC's) at home. If the proportion exceeds $25 \%$ , then the lab will scale back a proposed enlargement of its facilities. Suppose 300 business students were randomly sampled and 75 have PC's 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 approximately normal distribution.
• D) The sample mean equals the population mean.

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Definitions:

DMP Reagent

A powerful oxidizing agent, Dess-Martin Periodinane, used in organic chemistry to convert primary alcohols to aldehydes and secondary alcohols to ketones with high selectivity.

TsCl

Tosyl chloride, a chemical reagent used to make alcohols more reactive by converting them into tosylates.

(R)-Butan-2-Ol

A specific enantiomer of butan-2-ol, which is a four-carbon alcohol with the hydroxyl group (-OH) located on the second carbon; the (R) configuration indicates its specific stereochemistry based on the Cahn-Ingold-Prelog priority rules.

Pyridine

A basic heterocyclic organic compound with the chemical formula C5H5N, used as a precursor to agrochemicals and pharmaceuticals, and as a solvent.