Assume That the Heights of Men Are Normally Distributed with a Mean

question 10

Multiple Choice

Assume that the heights of men are normally distributed with a mean of 70.7 inches and a standard deviationof 2.8 inches. If 64 men are randomly selected, find the probability that they have a mean height greater than71.7 inches.

• A) 0.0021
• B) 0.0210
• C) 0.9005
• D) 0.9979

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Definitions:

Machine-Hours

An indicator of how much is produced or the level of activity in manufacturing, determined by the total hours that machinery is in use during the production process.

Job-Order Costing

A costing method used to calculate the production costs of individual units or batches of products, making it especially useful for customized orders in manufacturing or service industries.

Plantwide Overhead Rate

An overhead allocation rate applied uniformly to all products or services based on overall plant activity, ignoring individual departmental differences.

Direct Labor-Hours

Refers to the measurable amounts of work effort contributed directly by laborers on the manufacturing floor towards the production of goods.