A Population Has a Mean of µ = 30

question 14

Multiple Choice

A population has a mean of µ = 30.If 3 points are added to each score,what is the mean for the new distribution?

• A)27
• B)30
• C)33
• D)Cannot be determined from the information given

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Definitions:

Null Hypothesis

A statement suggesting that there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.

Null Hypothesis

A statement in statistical hypothesis testing that assumes no effect or no difference between phenomena or populations.

Level of Risk

The probability or chance of experiencing harm or loss.

One-sample Z-test

A statistical test used to determine whether there is a significant difference between the mean of a sample and a known or hypothesized population mean.