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Day trading again
An option to buy a stock is priced at $200. If the stock closes above 30 on May 15, the option will be worth $1000. If it closes below 20, the option will be worth nothing, and if it closes between 20 and 30 (inclusively), the option will be worth $200. A trader thinks there is a 50% chance that the stock will close in the 20 30 range, a 20% chance that it will close above 30, and a 30% chance that it will fall below 20 on May 15.
a) Should she buy the stock option?
b) How much does she expect to gain?
c) What is the standard deviation of her gain?
suppose you have 22 shoes in a basket 5 identical pairs of sneakers 4 identical pairs of sandals and 2 identical pairs
an automotive center keeps tracks of customer complaints received each week. the probability distribution for
the business college computing center wants to determine the proportion of business students who have laptop computers.
What is meant by the term "90% confident" when constructing a confidence interval for a mean?
If 49 applicants are randomly chosen, what is the probability that they will have a rating between 230 and 260? Round z scores to two decimal places.
The company wishes to maximize its expected discounted profit over an infinite horizon with = 0.9. Use an initial policy,
Disney tells you that the average distance between the ears on a Mickey Mouse hat is 5 inches. In a sample of 100 Mickey Mouse hats you find that the average distance between the ears on the hats is 5.2 inches with a standard deviation of 1 inch.
Mutual funds are classified as large-cap funds, medium cap funds, or small-cap funds, depending ont eh capitalizaiton of the companies in the fund.
A medical researcher found a significant relationship among a person's age x1, cholesterol level x2, sodium level of the blood x3, and systolic blood pressure y.
Find the least-squares regression line - Find the least squares estimates of γ0 and β1.
a. What are the values of the coefficients now? At what levels are the coefficients significant? b. Interpret the coefficient on irrigation. What does it mean for rice production? c. Now sum up your coefficients and obtain the scale of production.
The test has a reliability of .87 and a standard deviation of 5. Joe scored a 57 on the test and Jill scored a 62. Is Jill clearly superior to Joe? Explain your answer.
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