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A random sample of 100 people was taken. Eighty of the people in the sample favored candidate A. The 95% confidence interval for the true proportion of people who favor Candidate A is?
Statistics and Probability, Statistics
Hardboard is graded with the following frequencies: Grade A: 1/5 Grade B: 3/4 Cull: 1/20 If six pieces come off of a hot press, find the probability that two are Grade A, three are Grade B, and one is a Cull.
Consider the following cash flows: Year Cash Flow 0 -$5,900 1 2,000 2 2,700 3 1,500 4 900 What is the payback period for the above set of cash flows? In years
A confidence interval estimate is desired for the gain in a circuit on a semiconductor device. Assume that gain is normally distributed with standard deviation σ = 30. (a) How large must n be if the length of the 95% CI ...
Based on college data, scores on a certain test can be seen as normally distributed that can show the mean of 1524 and a standard deviation of 318. What percentage of scores are greater than 1842 and if needed round to t ...
A lot contains 15 items and 6 are defective. If two items are drawn at random from the lot, without replacement, what is the probability there is exactly one non-defective? (Hint: You have to use both Multiplication and ...
Show your work Sheel INC. has 7 percent coupon ( compounded semiannually) bonds on the market with 10 years to maturity, and the par value of $1,000. At what price should bonds be selling for if the YTM is 5%? Had the bo ...
Let X be a continuous random variable. Suppose that we know that Pr(X 5), and how do you know? (Hint: X is not necessarily normally distributed, but you can still consider how much area is under the curve, no matter the ...
A school newspaper reporter decides to randomly survey 12 students to see if they will attend Tet (Vietnamese New Year) festivities this year. Based on past years, she knows that 24% of students attend Tet festivities. W ...
A test of the null hypothesis H 0 : μ = μ 0 gives test statistic z = -0.58 (Round your answers to four decimal places.) a) What is the P -value if the alternative is H a : μ > μ 0 ? b) What is the P -value ...
A national report indicates that the mean and standard deviation of the ACT scores of incoming freshman at American public universities are 24.6 and 6.2, respectively. A sample of 30 incoming freshmen at a small, suburba ...
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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