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1. At many airports, a traveler entering the U.S. is sent randomly to one of several stations where his passport and visa are checked. If each of the 6 stations is equally likely, can the probabilities of which station a traveler will be sent be modeled with a Uniform model?
2. At the airport entry sites, a computer is used to randomly decide whether a traveler's baggage should be opened for inspection. If the chance of being selected is 12%, can you model your chance of having your baggage opened with a Bernoulli model? Check each of the conditions specifically.
3. The 2000 Census showed that 26% of all firms in the United States are owned by women. You are phoning local businesses, assuming that the national percentage is true in your area. You wonder how many calls you will have to make before you find one owned by a woman. What probability model should you use? (Specify the parameters as well.)
Using the p-value approach, test the hypotheses at the 1% level of significance.
a research study has stated that the taxes paid by individuals is correlated at a .78 value with the age of the
customers arrive at a checkout counter in a department store according to a poisson distribution at an average of
makers of generic drugs must show that they do not differ significantly from the reference drugs they imitate. one
the number of students who belong to the dance company at each of several randomly selected small universities is shown
a precision instrument is guaranteed to read accurately to within 2 units. a sample of four instrument readings on the
a researcher is interested in finding out if college-bound high school students tend to smoke cigarettes less than high
The grades have a bell-shaped distribution. Based on this information, which one of the following is the best estimate of the number of students with grades between 55 and 83?
two boxes a and b. box a contains 4 red balls and 5 white balls box b contains 2 red balls and 3 white balls. an
How many seats sould be in the non-smoking area in order to be very sure (mean+3StandardDeviation) of having enough seating there?
It is estimated that 55% of the freshmen entering a particular college will graduate from that college in four years.(a) What probability model should be used and why?
The accounting department at Western Materials Inc. national manufacturer of unattached garages, reports it takes two construction workers of a mean of 32 hours and standard deviation of 2 hours to erect Red Barn MODEL.
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