You Collect Data from a Sample of 150 People, and Calculate

question 6

Multiple Choice

You collect data from a sample of 150 people, and calculate a mean of 6.87 and a standard deviation of 3.69. What is the value for the standard error of the mean ?

• A) .30
• B) 1.86
• C) 6.87
• D) 21.83

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Definitions:

Assumptions

Premises or statements accepted as true without needing proof, used as the basis for reasoning, discussion, or calculation.

Normally Distributed

Refers to a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Equal Variances

A term referring to situations where different samples or populations have similar or identical variability or spread in their data.

ANOVA

A statistical method, Analysis of Variance, used to compare the means of three or more samples to understand if at least one sample mean significantly differs from the others.