A Pizza Chain Is Considering Opening a New Store in an Area

question 133

Multiple Choice

A pizza chain is considering opening a new store in an area that currently does not have any such
Stores.The chain will open if there is evidence that more than 5,000 of the 20,000 households in
The area have a favorable view of its brain.It conducts a telephone poll of 300 randomly selected
Households in the area and finds that 96 have a favorable view.Which of the following tests will
Be the most appropriate?

• A) t test for the mean.
• B) Z test for the proportion.
• C) Pooled-variance t test.
• D) Separate-variance t test.

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Definitions:

Primary Election

A preliminary election where voters decide their party’s candidates for a forthcoming general election.

Expected Number

The anticipated value in a probability distribution, representing the mean of a random variable.

Binomial Distribution

A probability distribution that summarizes the likelihood of a variable, which has only two possible outcomes, across a number of trials.

Normal Approximation

An approach in statistics for estimating the probability of different outcomes under the assumption that the data follow a normal distribution.