When Testing a Hypothesis About a Single Mean, If the Sample

question 129

Multiple Choice

When testing a hypothesis about a single mean, if the sample size is 51 and the population standard deviation is known, the correct test statistic to use is ________.

• A) r
• B) z
• C) t
• D) p-value

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Definitions:

Confidence Bound

The upper or lower value of a confidence interval, marking the range within which a population parameter is expected to lie with a certain probability.

Battery Pack

A battery pack is a collection of batteries configured in a series or parallel to provide the desired voltage and current levels for powering electronic devices or vehicles.

Population Standard Deviation

A measure of the dispersion of a set of values in a population, indicating how much the values typically deviate from the mean of the population.

Sample Mean

The average value of a sample set of numbers, calculated as the sum of all observations divided by the number of observations.