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Assume the annual mean return on ABC stock is around 15% and the annual standard deviation is around 25%. Assume the annual and daily returns on ABC stock are normally distributed.
a. What is the probability that ABC will lose money during a year?
b. There is a 5% chance that ABC will earn a return of at least what value during a year?
c. There is a 10% chance that ABC will earn a return of less than or equal to what value during a year?
d. What is the probability that ABC will earn at least 35% during a year?
e. Assume there are 252 trading days in a year. What is the probability that ABC will lose money on a given day? (Hint: Let Y be the annual return on ABC and Xi be the return on ABC on day i. Then [approximately] Y = X1 + X2 +...+ X252.)
On the basis of the tornado diagram, advise your friend regarding either (1) whether to invest or (2) what to do next in the analysis.
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if the population mean is expected to be 85 and the sample mean is 80 the sample standard deviation is 2 and the sample
Suppose we wish to compute 95% Tukey simultaneous confidence intervals to compare the mean durability of the different paints. Use the MINITAB output to help you to calculate the margin of error for these intervals. DO NOT CALCULATE THE INTERVALS!
If you buy a box of Wisk, the probability of getting a scoop is 97%. If you buy 9 boxes over the next several months, what is the probability of missing two scoops?
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A researcher wants to determine a 95% confidence interval for the mean number of hours that UMKC students spend doing homework per week.
What can you tell me about the direction, strength and significance of this association and What would you expect for somebody without any formal education whatsoever and what can you tell me about the nature of this relationship?
Why would the random variable y, defined as y 5 x2 2 x1, be of interest to the furniture manufacturer? What is the mean value of the random variable y? Assuming that x1 and x2 are independent, what is the standard deviation of y?
the one-dimensional class-conditional feature pdfs for a 2-category classification problem have triangular shapes px?1
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1. a researcher sends a questionnaire to 6000 individuals. she gets back 5000 responses. the percentage of women among
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