The Mean X of a Data Set Is 18, and the Sample

question 119

Essay

The mean x of a data set is 18, and the sample standard deviation s is 2. Explain what the interval (12, 24) represents.

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Definitions:

Test Statistic

A standardized value calculated from sample data during a hypothesis test that is used to make a decision about the null hypothesis.

P-value

The probability of obtaining test results at least as extreme as the ones observed during the test, assuming the null hypothesis is true.

Test Statistic

This is a value, derived from sample data, used in hypothesis testing to determine whether to reject the null hypothesis.

Null Hypothesis

The theory suggesting that any noted discrepancies between certain groups are merely the result of sampling or experimental inaccuracies, asserting no substantial variance exists.