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quality control part 2 the cell phone manufacturer in exercise 50 wants to model the time between events the mean
web visitors part 2 the website manager in exercise 49 wants to model the time between purchases recall that the mean
airfares each year a company must send 3 officials to a meeting in china and 5 officials to a meeting in france airline
emergency switch safety engineers must determine whether industrial workers can operate a machines emergency shutoff
childs play in a board game you determine the number of spaces you may move by spinning a spinner and rolling a die the
deductible a car owner may buy insurance that will pay the full price of repairing the car after an at-fault accident
passing stats mollys college offers two sections of statistics 101 from what she has heard about the two professors
teen smoking ii suppose that as reported by the centers for disease control about 30 of high school students smoke
buying melons the first store in exercise 28 sells watermelons for 32 cents a pound the second store is having a sale
jerseys a statistics professor comes home to find that all four of his children got white team shirts from soccer camp
plan b heres another attempt at developing a good strategy for the dice game in exercise 33 instead of stopping after a
technology on campus every 5 years the conference board of the mathematical sciences surveys college math departments
more coins suppose the class in exercise 5 repeats the coin-tossing experimenta the students toss the coins 25 times
mampms the candy company claims that 10 of the mampms it produces are green suppose that the candies are packaged at
coin tosses in a large class of introductory statistics students the professor has each person toss a coin 16 times and
door prize you are among 100 people attending a charity fundraiser at which a large-screen tv will be given away as a
recalls in a car rental companys fleet 70 of the cars are american brands 20 are japanese and the rest are german the
too many green ones in a really large bag of mampms the students in exercise 8 found 500 candies and 12 of them were
just unlucky one of the students in the introductory statistics class in exercise 7 claims to have tossed her coin 200
volcanoes almost every year there is some incidence of volcanic activity on the island of japan in 2005 there were 5
o-rings failures of o-rings on the space shuttle are fairly rare but often disastrous events if we are testing o-rings
apples when a truckload of apples arrives at a packing plant a random sample of 150 is selected and examined for
back to school again based on the 74 national retention rate described in exercise 17 does a college where 522 of the
sampling a sample is chosen randomly from a population that can be described by a normal modela whats the sampling
ap stats 2006 again an ap statistics teacher had 63 students preparing to take the ap exam discussed in exercise 43