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Math Help - Statistics Problem - Help please

  1. #1
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    Unhappy Statistics Problem - Help please

    Hello can someone help me solve this problem? Thanks

    A company employs 400 salespeople. Of those, 83 received a bonus last year, 100 attended a special sales training program at the beginning of last year, and 42 both attended the special sales training program and received a bonus. (Note: the bonus was based totally on sales performance.) Does the special sales training program seem to have been effective? Explain your answer.
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  2. #2
    GAMMA Mathematics
    colby2152's Avatar
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    Quote Originally Posted by ivlocal View Post
    Hello can someone help me solve this problem? Thanks

    A company employs 400 salespeople. Of those, 83 received a bonus last year, 100 attended a special sales training program at the beginning of last year, and 42 both attended the special sales training program and received a bonus. (Note: the bonus was based totally on sales performance.) Does the special sales training program seem to have been effective? Explain your answer.
    Let's see: 42 out of 100 whom attended training got bonuses, that is 42%
    Of those who did not goto training, 41 got bonuses (83 - 42) which is equal to 13.67% (41/300), so yes I would say it has been quite effective.
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  3. #3
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    Talking Thanks that helped. But how about this one?

    Thanks so much. I kept thinking that I had to employ some special Statistical equation to the problem.
    This is one seems to be tougher.

    In a clinical trial of Lipitor, a common drug used to lower cholesterol, one group of patients was given a treatment of 10 mg Atorvastatin tablets. In the group of 863 patients, 19 patients experienced flu symptoms and 844 patients did not (based on data from Pfizer, Inc.).
    a) If you know that the probability of flu symptoms for a person not receiving any treatment is 0.019, is this unusual to find that among 863 patients, there are 19 who experience flu symptoms? Explain.
    b) If you donít know that the probability of flu symptoms for a person not receiving any treatment is 0.019, is this unusual for a patient taking the drug to experience flu symptoms? Explain.
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