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Upon retirement Mr. Klaws start to make tow types of children's wooden toys in his shop - guns and tools Wuns yield variable profit of 9$ each and Tools have a contribution margin of 8$ each . Even though his electric saw overheats . he can make 7 wounds of 14 Toos each. Since he doesnt have equipment for drying the lacquer finish he puts on the toys the drying operation limits him to 16 Wins or 8 Toos per day
in 2002 investigators started a study of the association of cholesterol levels and stroke in a group of 2000 healthy
Let m denote a natural number. Use any properties of the natural numbers to argue that m x m is not equal to m + m.
What is the probability that ONE car chosen at random will have -less than 35.5 tons of coal - what is the probability that 20 cars chosen at random will have a mean load weight x¯ less than 35.5 tons of coal?
A national survey of engineering school graduates indicates that only 10% of them have had a course in statistics. (a) Find the probability that in a random sample of five engineering grad uates exactly two have had a course in statistics.
The table below lists the number of audience impressions (in hundreds of millions) listening to songs and the corresponding numbers of albums sold (in hundreds of thousands).
it is estimated that there are 30 depths for every 10 million people who use airplanes. a company that sells fight
The following data are from two separate samples. Does it appear that these two samples came from the same population or from two different populations?
make a decision about the given claims. use only the rare event rule stated in section 8-2 and make subjective
useless airways advertises that on average its new york to london flight takes five hours and 30 minutes. the federal
Determine the percentage of samples of size 4 that will have the mean scores within 35 points of the population mean score of 280.
The probabilities are 0.40, 0.50, and 0.10 that, in city driving, a certain kind of compact car will average less than 28 miles per gallon, from 28 to 32 miles per gallon, or more than 32 miles per gallon.
Of the 1060 surveyed,568 stated that they were worried about having enough money for retirement. Construct a 95% confidence interval for the proportion of adults who are worried about having enough money for retirement.
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