For a T Test with One Sample We

question 12

Multiple Choice

For a t test with one sample we

• A) lose one degree of freedom because we have a sample.
• B) lose one degree of freedom because we estimate the population mean.
• C) lose two degrees of freedom because of the mean and the standard deviation.
• D) have N degrees of freedom.

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Definitions:

Confidence Interval

A sequence of numerical values, obtained from the statistics of a sample, that likely envelops an undetected population parameter.

Sample Mean

The average value calculated from a subset of a population, used to estimate the population mean.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the numbers are from the mean.

Confidence Level

Confidence level refers to a statistical measure expressed as a percentage that represents the frequency at which an estimated parameter would fall within a specified range in repeated sampling.