SCENARIO 9-1 Microsoft Excel Was Used on a Set of Data Involving

question 113

Multiple Choice

SCENARIO 9-1
Microsoft Excel was used on a set of data involving the number of defective items found in a random sample of 46 cases of light bulbs produced during a morning shift at a plant.A manager wants to know if the mean number of defective bulbs per case is greater than 20 during the morning shift.She will make her decision using a test with a level of significance of 0.10.The following information was extracted from the Microsoft Excel output for the sample of 46 cases:

-Referring to Scenario 9-1,the parameter the manager is interested in is:

• A)the mean number of defective light bulbs per case produced at the plant.
• B)the mean number of defective light bulbs per case among the 46 cases.
• C)the mean number of defective light bulbs per case produced during the morning shift.
• D)the proportion of cases with defective light bulbs produced at the plant.

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Definitions:

Final Comprehensive Exam

A cumulative test covering material from an entire course or series of courses, typically given at the end of an academic term or program.

Action Hypothesis

An assumption made for the purpose of action or investigation, guiding decision-making or research direction.

P-Value

The probability of observing results at least as extreme as those measured when the null hypothesis is true, used in hypothesis testing.

Simple Random Sample

A segment of a statistical population where all individuals have the same likelihood of being selected.