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T-test

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AP Statistics

Definition

A t-test is a statistical test that compares two sample means to determine if they are significantly different from each other.

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"T-test" also found in:

Subjects (78)

Practice Questions (16)

What is the purpose of a t-test for the slope in a regression model?
Which of the following represents the null hypothesis (H0) for a t-test of the slope?
In a t-test for the slope, what does it suggest if the t-statistic is significantly different from zero?
What does a residual plot help us determine in a t-test for the slope?
Which condition is NOT necessary for conducting a t-test for the slope?
What distribution is used for critical values in a t-test for the slope?
What is the alternative hypothesis (Ha) for a t-test of the slope when testing whether the slope is not equal to a hypothesized value (β0)?
In a t-test for the slope, what does it suggest if the t-statistic is not significantly different from zero?
What is the minimum sample size required for conducting a t-test for the slope?
What does it mean if the t-statistic for the slope is exactly 0 in a t-test?
What is the consequence of violating the independence condition in a t-test for the slope?
In a t-test for slope, what is being tested?
What critical value is used in a t-test for the slope of a regression model?
What is the purpose of the degrees of freedom in a t-test for the slope of a regression model?
What is the purpose of calculating the degrees of freedom in a t-test?
What information should be included in a written response for a t-test for population mean?

Additional resources (1)

AP Statistics - Unit 7 Overview: Means

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