Questions from Statistical Techniques


Q: The chair of the board of directors says, “There is

The chair of the board of directors says, “There is a 50% chance this company will earn a profit, a 30% chance it will break even, and a 20% chance it will lose money next quarter.” a. Use an addition...

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Q: Refer to the Lincolnville School District bus data, which report information

Refer to the Lincolnville School District bus data, which report information on the school district’s bus fleet. a. Which of the variables are qualitative and which are quantitative? b. Determine the...

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Q: Big Orange Trucking is designing an information system for use in “

Big Orange Trucking is designing an information system for use in “in-cab” communications. It must summarize data from eight sites throughout a region to describe t...

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Q: Describe the similarities and differences between a frequency table and a frequency

Describe the similarities and differences between a frequency table and a frequency distribution. Be sure to include which requires qualitative data and which requires quantitative data.

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Q: The Bookstall Inc. is a specialty bookstore concentrating on used books

The Bookstall Inc. is a specialty bookstore concentrating on used books sold via the Internet. Paperbacks are $1.00 each, and hardcover books are $3.50. Of the 50 books sold last Tuesday morning, 40 w...

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Q: Silver Springs Moving and Storage Inc. is studying the relationship between

Silver Springs Moving and Storage Inc. is studying the relationship between the number of rooms in a move and the number of labor hours required for the move. As part of the analysis, the CFO of Silve...

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Q: Two coins are tossed. If A is the event “two

Two coins are tossed. If A is the event “two heads” and B is the event “two tails,” are A and B mutually exclusive? Are they complements?

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Q: The U.S. Dairy Industry wants to estimate the mean

The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 16 people reveals the mean yearly consumption to be 45 gallons with a standard deviation of 20 gallons. Assume t...

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Q: A National Park Service survey of visitors to the Rocky Mountain region

A National Park Service survey of visitors to the Rocky Mountain region revealed that 50% visit Yellowstone Park, 40% visit the Tetons, and 35% visit both. a. What is the probability a vacationer will...

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Q: Suppose P(X1) = .75 and P(Y2

Suppose P(X1) = .75 and P(Y2 | X1) = .40. What is the joint probability of X1 and Y2?

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