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Choose a variable from your own organization. describe how calculating a confidence interval from the results of a sample might be useful for learning more about the population statistics for that variable. Indicate whether you would be calculating the confidence intervals for a mean or for proportion.
Gasoline prices above $ 3 per gallon have affected what Enterprise Rental Car Co. can charge for various models of rental cars.
For multiple sclerosis patients we wish to estimate the mean age at which the disease was first diagnosed. We want a 90% confidence interval that is 8 years wide. If the population variance is estimated to be 85 from previous research, how large a..
Assume that JVC is trying to decide how to rate a new stereo system composed of a receiver, CD player, & speakers. The firm's economists have estimated that 2-different groups will buy these products
Is the income elasticity of demand for real cash balances significantly different from one?
Use the above survey results to test the claim that less than half of all Ohio State female students who, if they had a cell phone, would be willing to walk somewhere after dark that they would normally not go. What is the value of the test statis..
Player 1 has the following set of strategies {A1;A2;A3;A4}; player 2’s set of strategies are {B1;B2;B3;B4}. Use the best-response approach to find all Nash equilibria.
Employee absences can seriously affect productivity. In one country, employees are absent from work an average of 2.6 weeks of the 52-week work-year.
A certain lottery game is played by choosing four numbers from 1 to 15 (no repetition of numbers;order of the numbers does not matter).
A sample set of 29 scores has a mean of 76 and a standard deviation of 7. Can we accept the hypothesis that the sample is a random sample from a population with a mean greater than 72? Use alpha = 0.01(1-tail) in making your decision.
What body weight is considered underweight (defined as in the bottom 10% for body weight)?
Suppose you are a potential entrant into a market that previously has had entry blocked through the government. Your market research has estimated that the market demand curve for industry is
Suppose that a pair of 14-sided dice are rolled (the sides are numbered 1-14 and yes, these do actually exist).
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