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Problem:
Your percent from the previous exercise is part of
(i) the marginal distribution of school permissiveness.
(ii) the marginal distribution of the frequency that a teen brought a cell phone to school.
(iii) the conditional distribution of the frequency that a teen brought a cell phone to school among schools with a given level of permissiveness.
The old operation to restore hearing is known to be 30%sucessful. A new operation that restores hearing is being researched. It is known that 88 out of 225 operations using this new method have been successful. Can we justify the claim that the new m..
when looking at a set of data we often want to be able to describe it. what two elements are we interested in
If, 20 patients improved, 7 declined, and 3 remained the same, assess whether or not patients undergoing this treatment are showing significant change from baseline to 3 months afterward. Report a p-value.
the mean cost of a wedding is 28732. suppose the cost for a wedding is normally distributed with a standard deviation
what does bivariate normal distribution mean? explain in words or illustrate with a
suppose that you measure the heights of 20 high school sophomore males. the sample mean is 66.2 inches. suppose that
consider a virus that is spread by transfusions of blood contaminated by the virus a person receiving contaminated
Scores on certain nationwide college entrance examination follow normal distribution with mean of 500 and a standard deviation of 100. Determine the probability that student will score?
in 2006 merck released a vaccine named gardasil for hpv - the most common cause of cervical cancer among young women.
for many countries tourism is an important source of revenue. data are collected on the number of foreign visitors to a
Given a normally distributed population, a sampling distribution is summarized by mean=50, n=100 and standard deviation=15. what is the probability that a simple random sample will reveal a sample mean
1. When a movie producer decides whether to produce a major motion picture, the main question is how much revenue the movie will generate. Draw a decision tree of this situ ation, assuming that there is only one fundamental objective, to maximize ..
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