In a Normal Distribution with a Mean of 30 What

question 33

Multiple Choice

In a normal distribution with a mean of 30 what percentage of the scores would be above the mean?

• A)0%
• B)25%
• C)50%
• D)75%

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Definitions:

Hypothesis Test

A methodology in statistics used to determine whether a statement about a population parameter is likely true, based on sample data.

P-value

In statistical hypothesis testing, the probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is correct.

Unemployment Rate

The unemployment rate is a measure of the percentage of the labor force that is jobless and actively looking for employment.

Natural Sampling Variation

The variability observed in sample data, which arises naturally due to random selection from a population.