A Carload of Steel Rods Has Arrived at Cybermatic Construction

question 46

Multiple Choice

A carload of steel rods has arrived at Cybermatic Construction Company.The car contains 50,000 rods.Claude Ong,manager of Quality Assurance,directs his crew measure the lengths of 100 randomly selected rods.If the population of rods have a mean length of 120 centimetres and a standard deviation of 0.05 centimetres,the probability that Claude's sample has a mean less than 119.985 centimetres is ___.

• A)0.9974
• B)0.0026
• C)0.4987
• D)0.0013
• E)0.0030

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Definitions:

Highest Bid

The largest amount of money offered in a competitive process, such as an auction, for the purchase of goods or services.

Second Highest Bid

In an auction, the bid amount that is the next highest after the winning or highest bid.

Strategically Equivalent

Referring to actions, tactics, or strategies that yield the same outcome or effect, despite differing in approach.

English Auction

A bidding process where the price ascends and the highest bidder wins, commonly used in selling art, antiques, and collectibles.