At a Recent Meeting of Educational Researchers,comparisons Were Made Between

question 29

Multiple Choice

At a recent meeting of educational researchers,comparisons were made between the type of college freshmen attend and the numbers who drop out.A random sample of freshmen shows the following results: Determine the expected frequencies for the freshmen who drop out of 2-year institutions that will be used in the chi-square test of independence.

• A)15.0,9.0
• B)10.0,10.9
• C)18.0,18.0
• D)11.7,92.6

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Definitions:

Melanin

A pigment that gives color to the skin, hair, and eyes, and plays a crucial role in protecting the skin against UV radiation.

Insulin

A hormone produced by the pancreas that regulates blood sugar levels by facilitating the uptake of glucose into tissues.

Prolactin

A hormone produced by the pituitary gland that stimulates milk production after childbirth and affects sex hormone levels.

Latin Americans

People from countries in Latin America, a region of the Americas where Romance languages (primarily Spanish and Portuguese, and variably French) are spoken.