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The pro?t (or loss) from an investment is normally distributed with a mean of $11,200 and a standard deviation of $8,250.
a. What is the probability that there will be a loss rather than a pro?t?
b. What is the probability that the pro?t will be between $10,000 and $20,000?
c. Find x such that the probability that the pro?t will exceed x is 25%.
d. If the loss exceeds $10,000 the company will have to borrow additional cash. What is the probability that the company will have to borrow addi- tional cash?
e. Calculate the value at risk.
a sample of n 16 individuals is selected from a normal population with a mean of micro 48 and a standard deviation of
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It has been reported that the average US office worker receives 14 fax messages per day. For purposes of this exercise, we will assume that the daily number of fax messages is normally distributed with a standard deviation of 5.0 messages.
The owner of Maumee Ford-Mercury wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year.
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Sugar packaged by a certain machine has a mean weight of 5lb and a standard deviation of 0.02 lb. For what values of c can the manufacturer of the machinery claim that the sugar packaged by this machine has a weight between 5 - c and 5 + c lb with..
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