The Mean Number of Travel Days Per Year for the Outside

question 65

Multiple Choice

The mean number of travel days per year for the outside salespeople employed by hardware distributors is to be estimated. The 0.90 degree of confidence is to be used. The mean of a small pilot study was 150 days, with a standard deviation of 14 days. If the population mean is to be estimated within two days, how many outside salespeople should be sampled?

• A) 134
• B) 452
• C) 511
• D) 2,100
• E) None of the choices are correct

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U.S. States

U.S. States are the fifty administrative divisions of the United States, each with its own government and jurisdiction under the federal system.

Infant Mortality Rate

The rate at which babies under one year old die, often calculated per 1,000 live births.

United States

A country in North America consisting of 50 states and a federal district, known for its large economy and diverse population.

Fairly High

A relative measure indicating a level or amount that is somewhat above average or normal.