A Researcher Obtains Z = 1

question 32

Multiple Choice

A researcher obtains z = 1.80 for a one-sample z test.What is the decision for this test at a .05 level of significance?

• A)to reject the null hypothesis
• B)to retain the null hypothesis
• C)It depends on whether the test is one-tailed or two-tailed.

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Definitions:

Real Number Line

A one-dimensional line on which every point corresponds to a real number and every real number to a point.

Real Number Line

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Inequality

An inequality is a mathematical statement indicating that two expressions are not equal, represented by symbols such as > (greater than), < (less than), ≥ (greater than or equal to), or ≤ (less than or equal to).

Graphing Calculator

A handheld device capable of plotting graphs, solving equations, and performing other mathematical operations and visualizations.