Test Hypotheses About a Population Proportion
-According to a Prestigious $1999,7.2 \%$

question 23

Short Answer

Test Hypotheses about a Population Proportion
-According to a prestigious historical society, in $1999,7.2 \%$ of recent high school graduates believe that the Romans invented mayonnaise. A classics scholar believes that the percentage has increased since then. He randomly selects 125 recent high school graduates and finds that 17 of them believe in the Roman invention of mayonnaise. Test this researcher's claim at the $\alpha = 0.01$ level of significance.

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Definitions:

First Cause

A philosophical concept referring to the initial cause of a chain of events, often discussed in the context of the origin of the universe.

Controlled Experiment

An experiment in which all variables are kept constant except for the independent variable(s).

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment and is used as a benchmark to measure the effects of the treatment.

Experimental Group

A group in an experiment that receives the variable being tested.