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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,if the test is performed with a level of significance of 0.05,the engineer can conclude that the mean amount of force necessary to produce cracks in stressed oak furniture is 650.
Nominal Variables
Categorical variables that represent qualitative data with no intrinsic ordering or ranking between the categories.
Alternative Hypothesis
The hypothesis that contradicts the null hypothesis, representing the possibility that there is an effect or a difference.
Seat Belts
Safety devices designed to secure the occupant of a vehicle against harmful movement that may result during a collision or a sudden stop.
Independence
A condition where the occurrence of one event does not affect the probability of another event.
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