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Question: In the evaluation of a sales trining program, a firm discovered that of 50 sales people receiving bonuses last year, 20 had attended a special training sales training program. The firm employees 200 people. Let B = the event that a salesperson makes a bonus and S = the event that a salesperson attends the sales training program. a. Find P(B), P(S/B), and P(S upside down U) b. Assume that 40% of the sales people attended the training program. What is the probability that a salesperson makes a bonus given that given that the salespeople attend the sales training program? Comment on whether B and S are dependent or independent events.
At a used-book sale, 100 books are adult books and 160 are children’s books. Of the adult books, 70 are nonfictions while 60 of the children’s books are nonfiction. A book is selected at random. i) What is the probability that the selected book is an..
Illustrate your discussion with hypothetical experiment and data and give appropriate analyses.
"Men and the Frantic Life" reports on a study of 10,000 British workers done by the University College London, published in Prevention magazine.
Winning marathon times. In Chance (Winter 2000), statistician Howard Wainer and two students compared men's and women's winning times in the Boston Marathon.
you measure the lifetime of a random sample of 64 tires of a certain brand. the sample mean is x 50 months. suppose
More on the reading comprehension study. In the study described in the previous exercise, Basal is the traditional method of teaching.
currently available medication is -9.4 minutes with a standard deviation of 2.8 minutes. Construct a 95% CI for the mean difference in times between the experimental and currently available medication.
An article in Bloomberg Markets compares returns for the Hermitage Fund with those of the Russian Trading System Index.
Draw on the materials from your Quantitative Research Methods for Professionals in Education and Other Fields and Discovering Statistics Using IBM SPSS Statistics texts, avoiding the problems richly cited in the Lavrakas, Mane, and Laszlo's 2010 a..
In past elections, the representative received 40 percent of the popular vote in that area of the state. She doubts whether it has changed much. How many registered voters should be sampled?
Suppose a group of three Harper College students will be selected from a class that has 12 men and 16 women. What is the probability the group has at least one woman? Interpret this probability in context.
Select the outside and inside diameters for a hollow steel shaft subjected to a torque of 1,000,000 lb-in. The maximum shear stress developed in the shaft.
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