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Question: The height of residential door openings in the United States is 6'8". Use the information in problem to determine the number of men among 10,000 who have to duck to enter a room.
Problem: The mean height of American men aged 20-29 is 70.0 inches, with a standard deviation of 3.0 inches (Statistical Abstract of the United States: 2009, 2008).
a. The minimum height required for men to join the U.S. Army is 60 inches. What proportion of the population is excluded?
b. What proportion of the population is taller than Napoleon Bonaparte, who was 5'2"?
consider the game where two dice die a and die b are rolled. we say that die a wins and write a gt b if the outcome of
visit the australian bureau of statistics website and get the catalogue 6302.0 average weekly earnings australia. you
Find the sample mean and sample standard deviation for the amount of unspent money returned at the end of the day.
assuming that the distribution is normal for weight relative to the ideal and 99 of the male participants scored
suppose a random sample of 100 u.s. companies taken in 2005 showed that 21 offered high-deductible health insurance
Describe how you would use simulation to shed light on this problem. Assume that each time a video is rented, it is rented for one day.
Find an n×1 vector U of normal random variables with mean 0 and cov(U) = G. Hint: let V be an n×1 vector of independent N(0, 1) variables, and let U = G1/2V.
Use the method of transformations to find the probability density function of Y.
From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable.
at a publishing company the mean age of proofreaders is 36 years old and standard deviation is 4 years. assume the
A company manufacturers batteries in batches of 18 and there is a 3% rate of defects. Find the standard deviation for the number of defects per batch.
Give a 95% confidence interval for the proportion of all undergraduate students who work 10 or more hours a week during the school year.
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