A Researcher Is Testing a Hypothesis of a Single Mean $\alpha$

question 73

Multiple Choice

A researcher is testing a hypothesis of a single mean.The critical z value for $\alpha$ = .05 and a two?tailed test is +1.96.The observed z value from sample data is -2.11.The decision made by the researcher based on this information is to _____ the null hypothesis.

• A)reject
• B)fail to reject
• C)redefine
• D)change the alternate hypothesis into
• E)restate the null hypothesis

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Definitions:

Factory Utilities

The costs associated with utilities consumed in the manufacturing process, such as electricity, water, and gas necessary for factory operations.

Product Cost

The total expenses incurred to produce and deliver a product, including direct materials, direct labor, and overhead.

Period Cost

Costs not directly associated with production, charged as expenses during the period they arise.

Product Costs

Costs directly associated with the manufacturing of products, including direct materials, direct labor, and manufacturing overhead.