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1. Suppose that the number of airplanes arriving at the Indianapolis airport per minute is a Poisson process. The average number of airplanes arriving per minute is 3. The probability that more than 6 planes arrive in the next minute is _____.
2. There are 6 children in a family. The number of children defines a population. The number of simple random samples of size 2 (two children at a time) which is possible equals
a) 12
b) 15
c) 3
d) 16
If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 2nd floor?
What is the null hypothesis? What is your decision if a = 0.01?
The Johnson family uses a propane tank for cooking on their gas grill. During the summer they need to replace their tank on average every 30 days.
A recent census of a small town in Michigan showed that 60% of the residents are male, 20% have college degrees, and 15% are both male and college graduates.
Test hypothesis that Site B is more successful in initiating acquaintances than Site A. Use alpha = .05.
What is the probability that a roulette ball will come to rest on an even number other than 0 and 00?
The formula for a 95% confidence interval yields the interval 640 ± 5.88. Find out whether each of the given statements is true or false.
The registrar of a college with a population of N=4,000 full-time students is asked by the president to conduct a survey to measure satisfaction with the quality of life on campus.
I want to establish if a new product is worth marketing. At least 85 percent of the public must express interest in the product and for those that do the average cost they are willing to pay must be at least $47.50.
Solve problem graphically1. Describe optimal solution and objective function value in context of the problem.
In a normal frequency distribution, 32% of the cases:
What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes?
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