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Jamestown Steel Company manufactures and assembles desks and other office equipm

ID: 3133640 • Letter: J

Question

Jamestown Steel Company manufactures and assembles desks and other office equipment at several plants in western New York State. The weekly production of the Model A325 desk at the Fredonia Plant follows the normal probability distribution with a mean of 200 and a standard deviation of 16. Recently, because of 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. Suppose he wants the significance level to be 0.01.

the rejection region is :

z z0.01

Explanation / Answer

z z0.005   or z - z0.005

Last option

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