Current Has Units

question 21

Multiple Choice

Current has units:

• A)kilowatt·hour
• B)coulomb/second
• C)coulomb
• D)volt
• E)ohm

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Definitions:

Test Statistic

A test statistic is a value calculated from sample data during a hypothesis test. It's compared to a critical value to decide whether to reject the null hypothesis.

μ

The symbol for the mean or average of a set of data points in statistics.

Population Standard Deviation

A measure of the dispersion of a set of data points in a population away from its mean.

Sample Mean

The average of a set of values from a sample of a population, used to estimate the population mean.