SCENARIO 9-6 The Quality Control Engineer for a Furniture Manufacturer Is Interested

question 105

Multiple Choice

SCENARIO 9-6
The quality control engineer for a furniture manufacturer is interested in the mean amount of force necessary to produce cracks in stressed oak furniture.She performs a two-tail test of the null hypothesis that the mean for the stressed oak furniture is 650.The calculated value of the Z test statistic is a positive number that leads to a p-value of 0.080 for the test.
-Referring to Scenario 9-6,suppose the engineer had decided that the alternative hypothesis to test was that the mean was less than 650.What would be the p-value of this one-tail test?

• A)0.040
• B)0.160
• C)0.840
• D)0.960

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Definitions:

Independent Variables

Variables in an experiment that are manipulated or changed to observe their effect on dependent variables.

Independent Variables

Variables in an experiment or statistical model that are manipulated or categorized to observe their effect on dependent variables.

Degrees Of Freedom

The number of independent values or quantities which can vary in the analysis without violating any constraints.

Observations

Individual data points or measurements collected during a study or experiment.