Questions from Business Statistics


Q: The Panama Railroad Company was established in 1850 to construct a railroad

The Panama Railroad Company was established in 1850 to construct a railroad across the isthmus that would allow fast and easy access between the Atlantic and Pacific Oceans. The following table provid...

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Q: The SAT is a standardized test used by many colleges and universities

The SAT is a standardized test used by many colleges and universities in their admission decisions. More than one million high school students take the SAT each year. The current version of the SAT in...

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Q: The file MedianHousehold contains the median household income for a family with

The file MedianHousehold contains the median household income for a family with two earners for each of the fifty states (American Community Survey). a. Construct a frequency and a percent frequency d...

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Q: Data showing the population by state in millions of people follow (

Data showing the population by state in millions of people follow (The World Almanac). a. Develop a frequency distribution, a percent frequency distribution, and a histogram. Use a class width of 2....

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Q: Consumer complaints are frequently reported to the Better Business Bureau (BBB

Consumer complaints are frequently reported to the Better Business Bureau (BBB). Some industries against whom the most complaints are reported to the BBB are banks; cable and satellite television comp...

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Q: A large consumer goods company ran a television advertisement for one of

A large consumer goods company ran a television advertisement for one of its soap products. On the basis of a survey that was conducted, probabilities were assigned to the following events. B=individu...

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Q: The U.S. Department of Energy’s Fuel Economy Guide provides

The U.S. Department of Energy’s Fuel Economy Guide provides fuel efficiency data for cars and trucks (Fuel Economy website). A portion of the data from 2018 for 341 compact, midsize,...

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Q: Cooper Realty is a small real estate company located in Albany,

Cooper Realty is a small real estate company located in Albany, New York, specializing primarily in residential listings. They recently became interested in determining the likelihood of one of their...

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Q: A production process is checked periodically by a quality control inspector.

A production process is checked periodically by a quality control inspector. The inspector selects simple random samples of 30 finished products and computes the sample mean product weights x. If test...

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Q: A researcher reports survey results by stating that the standard error of

A researcher reports survey results by stating that the standard error of the mean is 20. The population standard deviation is 500. a. How large was the sample used in this survey? b. What is the prob...

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