The Table Below Contains the Length of Time (Minutes)for Which

question 24

Multiple Choice

The table below contains the length of time (minutes) for which different groups of students were able to stay awake to revise statistics after consuming 500 ml of one of three different types of stimulants.What is the variation in scores from groups A to B to C known as?

• A)The within-groups variance
• B)Homogeneity of variance
• C)The grand variance
• D)The between-groups variance

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Definitions:

Type I Error

The error of rejecting a true null hypothesis, also known as a false positive.

Alpha

Often denoted as α, it is a significance level used in hypothesis testing, representing the probability of rejecting a true null hypothesis.

Alpha

A term often associated with the significance level in hypothesis testing, indicating the probability of rejecting a true null hypothesis.

Type II Error

The error occurs when the null hypothesis is not rejected when it is actually false.