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There are 400 employes and 100 of them smoke. There are 250 males working for the company and 75 of them smoke. What is probability of an emloye selected random:
a) Is a male;b) Smokes;c) Is male and smoke;d) Is male or smoke.
Statistics and Probability, Statistics
Robertson Steel is forecasting the following numbers: EBIT $1,000,000 Interest Expense 300,000 ROE 20% The company is in the 40 percent tax bracket. After putting together the forecast the ...
The monthly sales demand for a new product is uncertain, but it is considered to be adequately described by a normal random variable with mean 50,000 units and variance 100,000,000. (a) A factory to manufacture the new p ...
A child care center wants to determine if there is a relationship between how long a child naps in minutes (20,21,22,23,24,etc.,etc) and incidents of aggression (1,2,3,4,etc.,etc). What type of statistical test should be ...
Thirty-eight percent of consumers prefer to purchase electronics online. You randomly select 16 consumers. Find the probability that the number who prefer to purchase electronics online is at most 5.
A project has an initial outlay of $4,623. It has a single payoff at the end of year 3 of $8,869. What is the net present value (NPV) of the project if the company's cost of capital is 12.43 percent?
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 ...
The diameters of tennis balls are distributed normally. The mean is 2.7 inches and the standard deviation is 0.3 inches. Find the probability that the diameter of a selected bearing is greater than 3 inches. (Round your ...
Ecolap Inc. (ECL) recently paid a $0.46 dividend. The dividend is expected to grow at a 12.50 percent rate. The current stock price is $49.72. What is the return shareholders are expecting?
Project Q costs 240. It provides inflows of 120 per year for three years. The cost of funds is 6%. Find the replacement chain value needed to compare it to a six year project.
Consider the following difference equation and initial condition(s). In each case, verify that the expression given for an (i) is a solution of the equation (ii) satisfies the initial condition(s). (a) an = 2(1/3)n satis ...
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