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Suppose that Corporation A and Corporation B are in very different industries. In fact, the share price of Corporation A's stock is procyclical but the share price of Corporation B's stock is countercyclical. Corporation A's share price has an expected value of $60 per share and a standard deviation of $10 per share. Corporation B's share price has an expected value of $30 and a standard deviation of $5 per share. The covariance between these to stocks' prices is -125.
An investor has 100 shares of Corporation A's stock and 200 shares of Corporation B's stock.
How would I find the variance of the total value of this investors portfolio?
Compute a .95 confidence interval for the mean in the following situations: (a) n = 12, σ = 22, X‾= 65, (b) n = 22, σ = 10, X‾= 185, (c) n = 50, σ = 30, X‾ = 19.
If the population meanis to be estimated to within two days, with 95% confidence, how many outside salespeople should be sample.
When the data are consistent with the direction of the alternative hypothesis for a one-sided test, the p-value for the corresponding two-sided test is double.
an investigator at a diet center is interested in the habits of clients entering his centers weight loss program. given
suppose that gmat scores are normally distributed with a mean of 530 and a standard deviation of 100. a school only
Conditional on the fact that all six chosen balls are the same color, what is the conditional probability that this color is red?
Suppose that past data are not available for developing a planning value for p; therefore, you will use p = 0.050 for the planning average.
Use the normal model to determine the probability that a wide receiver gained 325 yards or less in the 2006 season.
Does there seem to be any difference in the effect of the antibiotics on clearance of otitis media? Express your results in terms of relative risk (RR). Consider separate analyses for unilateral and bilateral cases. Also consider an analysis combi..
Suppose only one person in your survey has a chronic heart condition. What is the probability of getting one or fewer people with a chronic heart condition.
By looking at the magnitudes of the data values, when might you expect data transformation to be beneficial?
The profit for product 1 is $6 per unit, and the profit for product 2 is $4 per unit a. Formulate a linear programming model for this problem. b. Solve the model by using graphical analysis.
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