Taylor found that 8% of the recipients of loans form a particular mortgage lender default within 3 years. If he takes a random sample of 736 customers who received loans 3 years ago, what is the average number of custome ...
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Bella is 23 years old and wants to invest money for her retirement. She wants to have $2,000,000 saved up when she retires at age 65. a) If she can earn 10% per year in an equity mutual fund, calculate the amount of mone ...
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Sixty-seven percent of adults have looked at their credit score in the past six months. If you select 31 customers, what is the probability that at least 20 of them have looked at their score in the past six months?
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A quiz consists of 70 multiple choice? questions, each with five possible? answers, only one of which is correct. If a student guesses on each? question, what is the mean and standard deviation of the number of correct? ...
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In order to fund her retirement, Helen needs her portfolio to have an expected return of 13.8 percent per year over the next 30 years. She has decided to invest in Stocks 1, 2, and 3, with 25 percent in Stock 1, 50 perce ...
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What is the sample size for studies with MOE of +/-3.5% and +/-2.8%, with a confidence level of 95%, sample statistics of 50. Suppose the category population was 7500 (less than 10,000)? Remember the FPC. What would be t ...
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In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 4.8 minutes. It is assumed that this is a normally distributed variable. Find the ...
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Suppose a firm uses sales teams to market their products. For example, a construction equipment manufacturer may assign three sales agents to a team so each team member can specialize in particular product functions (e.g ...
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You want to retire in 35 years. To fund the retirement, you deposit $25,000 into an account now, and you deposit $20,000 five years from now. You also plan to save an equal amount each year between now and 35 years from ...
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A calculus student takes a 20 question multiple choice test with five answer choices for each question. Find the probability of getting atleast 70 percent of the question correct? Suppose a family has 5 children and that ...
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