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Question: Read News Story 13 in the Appendix and on the CD, "3 factors key for drug use in kids." Identify or calculate a numerical value for each of the following from the information in the news story:
a. The increased risk of smoking, drinking, getting drunk, or using illegal drugs for teens who are frequently bored, compared with those who are not.
b. The relative risk of smoking, drinking, getting drunk, or using illegal drugs for teens who are frequently bored, compared with those who are not.
c. The proportion of teens in the survey who said they have no friends who regularly drink.
d. The percent of teens in the survey who do have friends who use marijuana.
Suppose we are flipping a fair coin (i.e., probability of heads = 0.5 and probability of tails = 0.5). Further, suppose we consider the result of heads to be a success. What is the standard deviation of the binomial distribution if we flip the coin..
question which is relatively better a score of 85 on a psychology test or a score of 45 on an economics test? scores on
q1.a multiple-choice test consists of 12 questions with 4 possible answers to each question. in how many ways can the
What is the probability that the next 2 cards dealt to Slim will be diamonds? This outcome would give him 5 cards from the same suit, a very good hand and called a flush.
Conduct a test for homogeneity of populations. Use a = 0.01. State your conclusion, justify your answer, and find bounds on the p value associated.
a sample of n 4 scores has a mean of m 12. a second sample of n 6 scores has a mean of m 8. if the two samples are
Test to compare the proportions of HBV infection between the four groups: physicians with frequent exposure, physicians with infrequent exposure, nurses with frequent exposure, and nurses with infrequent exposure. State clearly your null and alter..
Give a 99% con?dence interval for the proportion of people in the given age group who may be successfully treated with the facial cream.
Find an SAT percentile. Reports on a student's ACT or SAT usually give the percentile as well as the actual score. The percentile is just the cumulative proport
a container contains 15 diesel engines. the company chooses 12 engines at random and will not ship the container if any
In a certain college, 33% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, that is the probability that no more than 6 belong to an ethnic minority?
For sample data, determine the mean, median, range, and midrange.- The mean absolute deviation.- The standard deviation and variance.
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