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Suppose that the proportion of a certain disease in the population is p=0.2. Consider a simple random sample of n=116 people. Denote by X the number of people in the sample that have the disease. Calculate the following probabilites. P(X=23)=?
Statistics and Probability, Statistics
Research Scenario: A community psychologist is interested in whether people's self-reported degree of religious belief predicts their self-reported feelings of well-being. She administers two questionnaires to 17 individ ...
A medical researcher is interested in determining whether a new medication for lung cancer is effective in a group of patients with early-stage disease. Explain what a Type I and Type II error would be in this study. (Be ...
Two payments of $9,000 and $2,600 are due in 1 year and 2 years, respectively. Calculate the two equal payments that would replace these payments, made in 6 months and in 5 years if money is worth 10.00% compounded quart ...
1. A stock market analyst is able to identify mis-priced stocks by comparing the average price for the last 10 days to the average price for the last 60 days. If this is true, what do you know about the market's efficien ...
How do you find the Forward Discount/Premium on the foreign currency for 7.4 & 7.5?
Carrie D's has 6.7 million shares of common stock outstanding, 3.7 million shares of preferred stock outstanding, and 27.00 thousand bonds. If the common shares are selling for $29.80 per share, the preferred share are s ...
Rework problem 3 from section 4.3 of your text, involving the expected value of a given probability density function. Use the density function shown below instead of the one in your text. Value of X: ; Probability: 1 1/2 ...
Assume that the critic finds that 50 percent of the movies have positive comments about the plot, 50 percent have positive comments about the acting, and 30 percent were not given positive comments about either plot or a ...
Suppose we can only sample from Uniform distribution (0,1) with k=3. Design an algorithm to simulate chi-square distribution with 2k freedom via general transformation method.
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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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