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For questions a and b, suppose that the population of annual health care claims by employees is normally distributed with a mean of $9,500 and a standard deviation of $3,000.
a) What is the probability that an employee selected at random has health care claims exceeding $11,000?
b) Suppose that five employees are selected at random. What is the probability that the average health care claims of these five employees exceed $11,000?
c) Suppose that five employees are selected at random. What is the probability that all five of their health care claims each exceeds $11,000?
If 1,000 of these tax returns are randomly selected, what is the approximate probability that between 110 and 140, inclusive, were prepared by H&R Block? Justify the use of the approximation you use, and make sure to define the random variable und..
Click on the euro in the first column in order to generate a historical trend of the direct exchange rate of the euro. Click on 5y to review the euro's exchange rate over the last 5 years. Briefly explain this trend (whether it is mostly upward or..
Which the maximum number is 69, what is the probability that the number of people who show up will exceed the capacity of the plane?
What are the explanatory and the response variables in this example? Indicate whether each is qualitative or quantitative.
The manager decides one evening to overbook and accept 20 reservations when only 15 tables are available. What is the probability that more than 15 parties will show up?
Let B be the event that a randomly selected person from this sample is employed. What is P(A|B) (rounded to two decimal places)?
A box of nine golf gloves contains two left-handed and seven right-handed ... box without replacement, what is the probability that- (X) both gloves are right handed and (Y) one left-handed and one ... If two gloves are randomly selected with repl..
if we know that the length of time it takes an mba student to find a parking spot near the depaul center follows a
Records of 40 used passenger cars and 40 used pickup trucks (none used commercially) were randomly selected to investigate whether there was any difference.
2. Let f be a surjection. Then f is an isomorphism iff the order of the element f(a) is equal to the order of the element a , for all a belong to G. First, I want to know if f is the trivial homorphism, then both will fail, right? Second, if f is n..
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Assuming that you fit with the population of college students of your sex, what is the z-score corresponding to your right hand span measurement?
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