Sampling and Sampling Distributions

Tread-On-Us has desgned a new tire, and they don't know what the average amount of tread life is going to be.

An underwater salvage team is preparing to explore a site off the coast of Florida where an entire flotilla of 45 Spanish galleons sank.

An X-ray technician is taking readings from her machine to ensure that it adheres to federal safety guidelines.

Sara Gordon is heading a fund - raising drive for Milford College. She wishes to concentrate on the current tenth-reunion class, and hopes to get contributions from 36 percent of the 250 members of that class.

Davis Aircraft Co. is developing a new wing de-icer system, which it has installed on 30 commercial airliners.

Food Place, a chain of 145 supermarkets, has been bought out by a larger nationwide supermarket chain.

Miss Joanne Happ, chief executive officer of Southwestern Life & Surety Corp, wants to undertake a survey of the huge number of insurance policies that her company has underwritten.

By reviewing sales since opening 6 months ago, a restaurant owner found that the average bill for a couople was $26, and the standard deviation was $5.65.

The U>S. Customs Agency routinely checks all passengers arriving from foreign countries as they enter the United States.

HAL Corporation manufactures large computer systems and has always prided itself on the reliability of its System 666 central processing units.

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