The Institute of Education Sciences Measures the High School Dropout

question 77

Multiple Choice

The Institute of Education Sciences measures the high school dropout rate as the percentage of 16-through 24-year-olds who are not enrolled in school and have not earned a high school credential. Last year, the high school dropout rate was 8.1%. A polling company recently took a survey of 1,000 people between the ages of 16 and 24 and found that 6.5% of them are high school dropouts. The polling company would like to determine whether the dropout rate has decreased. At a 5% significance level, the p-value and α are ________.

• A) z = -2.052
• B) z = -1.8545
• C) z = 1.8545
• D) z = 2.052

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Definitions:

Variables

Elements, features, or factors that are liable to vary or change in studies or experiments.

Random Assignment

A method used in experiments to randomly allocate participants to different groups to reduce bias.

Continuous

Unbroken or uninterrupted in space, time, or sequence.

Discontinuous

Characterized by distinct stages or levels of development rather than a smooth, gradual progression.