If the Population Average Is 45,the Sample Mean Is 50,and

question 29

Multiple Choice

If the population average is 45,the sample mean is 50,and the standard error of the mean is 5,what is the observed z value?

• A)0
• B)-0.1
• C)1
• D)-1

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Definitions:

Ordinal Data

Data that is categorized based on order or ranking, but where the intervals between the categories are not necessarily consistent or known.

Normally Distributed

Describing a distribution that follows a normal curve, with most observations clustering around the mean and tapering off symmetrically towards the extremes.

Sign Test

A non-parametric test used to evaluate the difference between the median of a paired sample and a hypothesized value.

Identical Medians

The statistical assessment that two or more groups have the same median value in their data distributions.