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

question 108

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. It is appropriate to use the z-test.
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:

Breach

The violation or failure to comply with a legal obligation, contract, or agreement.

Restitution

Compensation or repayment for loss, damage, or injury caused to another party.

Tort

A wrongful act or infringement of a right leading to civil legal liability, not arising from a contract, but through negligence, defamation, and other such acts.

Electrician

A skilled tradesperson who installs, maintains, and repairs electrical systems and equipment.