The Jamestown Steel Company Manufactures and Assembles Desks and Other $\mu$

question 60

Multiple Choice

The Jamestown Steel Company manufactures and assembles desks and other office equipment at several plants. The weekly production of the Model A325 desk follows a normal probability distribution, with a mean of 200 and a standard deviation of 16. Recently, due to market expansion, new production methods have been introduced and new employees hired. The vice president of manufacturing would like to investigate whether there has been a change in the weekly production of the Model A325 desk. Is the mean number of desks produced different from 200? The mean number of desks produced last year (50 weeks, because the plant was shut down two weeks for vacation) is 203.5. Test using the.01 significance level. i. The alternate hypothesis is $\mu$ $\neq$ 200.
ii. The calculated value of z is 2.55.
iii. The decision rule is: if the computed value of the test statistic is not between -2.58 and 2.58, reject the null hypothesis.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Dual-Earner Household

A family unit where both adult partners are employed and contribute to the household's income.

Burnout

Syndrome of physical and emotional exhaustion, cynicism, and a lowered sense of self-efficacy that is attributable to work-related stress.

Decision Control

The ability or authority to make choices and define policies or procedures in personal or organizational contexts.

Hostile Environmental Harassment

A form of harassment that creates an intimidating, hostile, or offensive work environment, often based on race, sex, or ethnicity.