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Question: Assuming heights for each sex are bell-shaped, with means of 70 inches for men and 65 inches for women, and with standard deviations of 3 inches for men and 2.5 inches for women, what proportion of your sex is shorter than you are? (Be sure to mention your sex and height in your answer!)
Find the mean, variance, and standard deviation of the number of parents who identify their child's illness correctly.- Find the probability that at least 42 parents are correct.
prepare a box-and-whisker plot for the following data.11 8 26 31 62 19 7 3 14 7533 30 42 15 18 23 29 13 16 6does this
Design a 95 percent confidence interval for the proportion of defectives in a large lot, if a sample of 200 showed 12 defectives.
Give three logically possible directions of casualty, indicating for each direction whether it is a reasonable explanation for the correlation in light of the variables involved (and why).
performance analysis corporationchapel hill north carolinaperformance analysis corporation founded in 1979 is a
The sample service times (in minutes) are 5.2, 7.5, 4.8, 11.4, 9.8, 10.5, 8.2, 11.0, 12.0, 8.5. Find the total expected loss per customer. If the restaurant expects 2000 customers monthly, what is the expected monthly loss?
in 2002 investigators started a study of the association of cholesterol levels and stroke in a group of 2000 healthy
Results sufficient to conclude that the self-hypnosis has a significant effect? Assume that increasing and decreasing allergic reactions are equally likely if the training has no effect. Use a = .05.
class limits 20-26 27-33 34-40 41-47 48-54 55-61frequency 7 12 9 4 2 11. what is the mean of distribution?2. what is
Which of the following events are disjoint and What proportion of the females rated their intelligence less than 7.
what are the z scores above and below the mean that contain the middle 90 of a normal
He (given that) the true proportion of perfect condition items is only 80% what is the probability that the lot will not be shipped?
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