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If you have a Facebook account, you are allowed to have up to 5,000 friends. At that point, Facebook cuts you off, and you have to "unfriend" people to add more. Imagine you collected data from Facebook users at your university about the number of friends each has.
a. What type of skew might you expect for such data?
b. Do the skewed data represent a floor effect or ceiling effect?
Construct a 95% confidence interval on the population mean for the following sample data set:
Recent near misses in the air, as well as several fatal accidents, have brought air traffic controllers under close scrutiny.
a car agency sells 50 of its inventory of a certain foreign car equipped with side airbags. find a formula for the
The liquid crystal display in the new Extime brand of digital watches is such that the probability it contin ues to function for at least x hours before failure is con stant (for any given choice of x), regardless of how long the display has al..
production engineers at sinotron believe that a modified layout on its assembly lines might increase average worker
Suppose a bookie will give you $6 for every $1 you risk if you pick the winner in 3 ballgames. For every $1 bet, you either lose $1 or gain $6. What is the bookie's expected earnings per dollar wagered?
suppose that in a certain texas town 70 of the voters are republicans 20 of the voters are democrats and 10 of the
What is the sample proportion from an American Express sponsored survey that found 355 of 546 business travelers use a laptop computer on overnight business trips?
Can we conclude a difference in means? YES or NO (circle one)
Your goal is have a college fund for your child. Suppose you find a fund that offers an APR of 7%. How much should you deposit monthly to accumulate ?$t86,000 i
Find the probability that the estimated EF value is between 60 and 65.
Each of the following passages contains a single argument. Using the letters "P" and "C," identify the premises and conclusion of each argument.
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