Suppose You Are Testing the Null Hypothesis That a Population

question 65

Multiple Choice

Suppose you are testing the null hypothesis that a population mean is less than or equal to 80, against the alternative hypothesis that the population mean is greater than 80.If the sample size is 49 and alpha = .10, the critical value of z is ___.

• A)1.645
• B)-1.645
• C)1.28
• D)-1.28
• E)2.33

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Definitions:

Job Simplification

The process of breaking down tasks into simpler and smaller components to increase efficiency and reduce complexity.

Assembly-Line Job

Positions in a manufacturing process where each worker is responsible for a specific, repetitive task in the sequence of production.

Job Design Strategy

The process of defining how work will be performed and what tasks will be required in a given job.

Job Simplification

The process of breaking down jobs and tasks into simpler components or steps to increase productivity and reduce complexity.