Use the Following Information to Answer the Question

question 37

Multiple Choice

Use the following information to answer the question. A janitor at a large office building believes that his supply of light bulbs has too many defective bulbs. The janitor's null hypothesis is that the supply of light bulbs has a defect rate of p = 0.07 (the light bulb manufacturer's stated defect rate) . Suppose he does a hypothesis test with a significance level of 0.05.
Symbolically, the null and alternative hypothesis are as follows: H₀: p = 0.07 and H_a: p > 0.07.
-Suppose that the janitor tests 300 randomly selected light bulbs and finds that 27 bulbs are defective. What value of the test statistic should he report? Round to the nearest hundredth.

• A)z = - 1.96
• B)z = 1.96
• C)z = 1.36
• D)z = - 1.36

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Definitions:

Predicting Work Outcomes

The process of forecasting or estimating the potential results or consequences of actions within a workplace setting.

Knowledge, Skill

The theoretical understanding (knowledge) and the practical ability (skill) to perform tasks and solve problems.

Ability Demands

The specific skills and competencies required for a job or task, reflecting the necessary capacity to perform effectively.

Self-Initiated Changes

Modifications or transformations that individuals undertake voluntarily in their personal or professional lives to achieve desired outcomes.