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Question: Consider an investment portfolio of $50,000 in stock A and $50,000 in stock B. The expected value of A is 9.5% and B is 6%. The variance of A is 13% and the variance of B is 8%. The covariance between A and B is 18.6%.
(a) Compute the portfolio's weights associated with stock A and stock B.
(b) Obtain the portfolio expected return.
(c) Find the variance of the portfolio.
Standard deviation of sample was $3.53. Determine point estimate of population mean. Determine the 95% confidence interval of population mean. Suppose the variable is normally distributed.
Use 0.01 significance level to test the claim that the selection process is biased against Mexican-Americans. What is the mean and standard deviation for the numbers of Mexican Americans?
If X=85 (sample mean), 8 is population standard deviation, and n=64 is sample size, construct a confidence interval estimate for the population mean.
The length of human pergnancies is aprox normally distibuted with a mean of 266 days and a standard devation of 16 days what is the probability the pregancy will last between 160 and 255 days?
Make a histogram for the r probability distribution.
Using the probabilities above what is the expected size of family you draw?
A retailer finds that the demand for a very popular board game averages 100 per week with a standard deviation of 20. If the seller wishes to have adequate stock 95% of the time.
If a six appears for the third time, the turn of the player ends without moving the token. Determine the sample space of one such throw and determine the probability for each event.
A biologist with the Department of Agriculture is studying the growth of artichokes. She knows that the number of artichokes produced by each plant follows a distribution which is approximately normal.
Management wishes to know how many casks of each wine to make to maximize total. profit. Prepare the linear programming model for this problem.
How would I calculate estimates of L, Lq, W, Wq and probability that there is no customer in the system? How would I calculate L, Lq, W, Wq and probability there is no voter in the system with 2 customer service representatives?
Suppose the time necessary to process an application for a license plate for a newly purchased vehicle is normally distributed with mean of 6 minutes and standard deviation of 1.5 minutes.
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