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Question: Day trading. 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?
Criticize the following definitions in light of the eight rules for lexical definitions:- "Schooner" means sort of like a sailboat.
Find the sample size for the 95% confidence interval used to estimate the population proportion.
A final exam in Statistics has a mean of 73 with a standard deviation of 7.73. Assume that a random sample of 24 students is selected and the mean test score of the sample is computed. What percentage of sample means are less than 70?
A sales person at a company sold 6,903,435 of hardware equipment last year, a figure that represented the eighth decile of sales performance at the company. What can you conclude about the salesperson performance?
A test consists of multiple-choice questions, each having four possible answers (a,b,c,d) one of which is correct. Assuming that you guess the answers to six such questions.
Conduct a descriptive analysis on any 2 interval/ratio variables - Conduct 3 different hypothesis tests of your choice using appropriate variables from the file.
1. Discuss what classical artistic traditions are present in these two images. 2. How did the artists of these portraits use color, line, texture and proportion to show the heavenly, divine quality of the subjects?
undergrad students in a section of stat 225 are classified as lower classmen freshman and sophomores and upper classmen
What kinds of statistical data might a burglar alarm company employ in trying to convince urban homeowners to purchase its product?
Find the probabilities for these five intervals using Table A. Then compute the expected number for each interval for a sample of 500. Finally, perform the goodness-of-fit test and summarize your results.
the average length of a new born baby is 20 inches with a standard deviation of 1 inch.b. if n100 what is the mean of
You take an SRS of size 49 from a population with mean 320 and standard deviation 21. Find the mean and standard deviation of the sampling distribution of your sample mean.
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