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A silver dollar is flipped 100times, with the following results: Heads =57, tails=43. What test should be used to determine if this is a fair coin?
Statistics and Probability, Statistics
In a large university, 68% of students live in dormitories. A random sample of 14 students is selected. What is the probability that the sample contains more than five students who do not live in the dormitories?
Strip Mining Inc. can develop a new mine at an initial cost of $11 million. The mine will provide a cash flow of $39 million in 1 year. The land then must be reclaimed at a cost of $32 million in the second year. a. Wha ...
A few years ago, Simon Powell purchased a home for $250,000. Today, the home is worth $450,000. His remaining mortgage balance is $200,000. Assuming that Simon can borrow up to 70 percent of the market value, what is the ...
IQ test scores of students are normally distributed with mean μ=100 and standard deviation σ=10. What is the 33th percentile of the IQ scores? For a randomly chosen student, what is the probability that his or her IQ sco ...
Your client wants to save $500,000 for his retirement. He plans to retire in 20 years. How much must he deposit in his individual retirement account now, assuming that the account pays a fixed rate of 8% annually, to mak ...
A shipment contains 11 TV's, of which two are defective. A sample of three TV's is selected at random. In how many ways can no defective TV's be chosen?
Suppose that A, B and C are events in a sample space S, such that: A and B are equally likely; C is four times as likely as B; B and C are independent; if either B or C occurs, then A cannot occur; at least one of A, B o ...
1. For a normal distribution with μ = 500 and σ = 100, a. What is the percentile rank for X = 550? b. What is the percentile rank for X = 650? c. What is the percentile rank for X = 450? 2. For a normal distribution with ...
The average starting salary for graduates at a university is $33,000 with a standard deviation of $2,000. If a histogram of the data shows that it takes on a mound shape, the empirical rule says that approximately 68% of ...
Determine the minimum sample size required when you want to be 98% confident that the sample mean is within two units of the population mean. Assume a standard deviation of 4.82 in a normally distributed population.
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As