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In chapter 9 we learned that it is possible to use a sample of observations to make inferences about an entire population, or as Hubbard puts it "How observing some things tells us about all things." With this in mind, cross-examine with your peers the pros/cons of some of the sampling methods discussed in the text. Emphasize the importance of reducing bias. In your answer, elaborate upon the power of experimentation.
Using the z-score of ±1.645 for the 5 percent cutoff and the z-score of ±1.96 for the 2.5 percent in the tail, identify the subject identification (ID) number for subjects who are closest to the cutoff for the upper 2.5 percent and 5 percent of th..
A quick quiz consists of five multiple-choice questions, each with four possible answers, only one of which is correct. If you make random guesses for each answer, what is the probability that all five of your answers are wrong?
mvp mobileyou work for mvp mobile as a marketing analyst. mvp mobile sells the glx i smartphone with either the silver
Calculate the average time it takes a plane to land and clear the runway once it has notified the airport that it is in the vicinity and wants to land.
you work for an auto company. each car produced is expected to have no more than4 defects fit and finish tolerances
The severity is measured on the scale
The time of the second cause of failure is uniformly distributed on the interval [0, 5]. Find the probability that: (a) the machine will fail from cause 1 before time 3; (b) the machine will eventually fail from cause 2.
we are presenting in the accompanying chart the achievement test scores for 15 trainees assigned to three different
What are the assumptions that must be met for non-parametric statistics? What are the positives and the negatives of the chi-square test?
Past experience shows that the standard deviation of the yearly income of textile workers in a certain state is $400. How many textile workers would you need to sample if you wished to estimate the population mean to within $50.00, with probabilit..
what are the three most important things you learned about sampling? write 5 sentences
1. In the game in Exercise 6, let p = q = 1/2 and M = 10. What is the probability that the gambler's stake equals M at least 20 times before it returns to 0? 2. Write a computer program which simulates the game in Exercise 6 for the case p = q = 1/2..
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