Let's Assume There Are Freshman, Seniors, and Graduate Students in Your

question 71

Multiple Choice

Let's assume there are freshman, seniors, and graduate students in your class and we want to know if their average GPAs differ. What is the proper statistical test?

• A) t test
• B) Means differences test
• C) Summarization of means test
• D) ANOVA
• E) z test

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Definitions:

Mean

The average of a set of numbers, calculated by adding them all together and then dividing by the total number of values.

Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of data, commonly the mean, median, or mode.

Positively Correlated

A relationship between two variables where both variables move in the same direction, meaning that as one variable increases, the other also increases, or as one decreases, the other also decreases.

Diet Drugs

Medications prescribed to aid in weight loss by suppressing appetite, increasing metabolism, or inhibiting fat absorption.