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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.)
What is the difference between McNemar's Test and the chi-square test for 2X2 tables? When do we use each test?What is a discordant pair and concordant pair? Also, which type of pair is used in the McNemar's test?
A random sample of 100 items is selected from a population of size 350. What is the probability that the sample mean will exceed 200 if the population means is 195 and the population standard deviation equals 20?
In estimating a 95% confidence interval estimate of the average number of days absent for the company's workers last year should you use a z or t value in the formula?
If the interval of time between the eruptions is normally distributed with a standard deviation of 29 minutes, what is the probability that a randomly selected time interval between eruptions is longer than 96 minutes?
A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12.
Write a computer program to simulate the queue in Exercise 20. Have your program keep track of the proportion of the time that the queue length is j for j = 0, 1, . . . , n and the average queue length.
For a population with a mean of μ = 60 and a standard deviation of σ = 24, find the Z score corresponding to each of the following samples.
Locate a business periodical such as Fortune or Forbes or a business newspaper such as The Wall Street Journal. Find three examples of the use of a graph to display data. For each graph
Problem: Two rainstorms occurred in one week in a certain area. In the first storm 30 ml of rain fell per hour, and in the second storm 20 ml of rain fell per hour.
the average teachers salary in noth dakota in 37764. assume a normal distribution with a population standard devation
a sample proportion is calculated from a sample size of 201. how large of a sample would we need to decrease the
He is twice as likely to visit city X than the other city. Obtain the transition probability matrix. Also determine the proportionate visits by him to each of the cities in the long run.
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