Mathematics, 06.03.2020 23:35, nadia74
Do well-rounded people get fewer colds?
A study on the Chronicle of Higher Education was conducted by scientists at Carnegie Mellon University, the University of Pittsburgh and the University of Virginia. They found that people who have only a few social outlets get more colds than those who are involved in a variety of social activities. Suppose that of the 276 healthy men and women tested, n1= 96 had only a few social outlets and n2 = 105 were busy with six or more activities. When these people were exposed to a cold virus, the following results were observed:Few social outlets: 62% with coldsMany social outlets: 35% with coldsa) Construct a 99% confidence interval for the difference in the two population proportionsb) You might think that coming into contact with more people would lead to more colds but the data show the opposite effect. How can you explain this unexpected finding ?
Answers: 2
Mathematics, 20.06.2019 18:04, qdogisbeast7662
You have two cards with a sum of -12 in both hands. a. what two cards could you have? b. you add two more cards to your hand, but the total sum if the cards remains the same, (-12).
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Mathematics, 21.06.2019 16:20, elkinsmarie88oyzd23
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Mathematics, 21.06.2019 20:00, marisolrojo2002
Which expression is equivalent to -5(3x - 6/7)
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Do well-rounded people get fewer colds?
A study on the Chronicle of Higher Education was cond...
A study on the Chronicle of Higher Education was cond...
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