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Please Identify the two variables and then state which is independent and which is the dependent variables in the following:
(a) Eating fast food and over-weight
(b) Drive over the speed limit and fatal accidents
(c) Income and your education
(d) Age and the type of music you listen too
(e) Race and your religious preference
(f) Crimes committed and they type of weather
Compute a 95% confidence interval for the mean using the formula and where is the mean of the ten random numbers.
A sample of 60 smokers has a mean cotinine level of 125. Assuming that sigma=25, find the 90% confidence level estimate of the mean cotinine level of all smokers.
Develop a probability tree showing all marginal, conditional, and joint probabilities and what is the probability that a student selected at random failed the test?
we want to estimate the mean population. a random sample of subjects is selected and the sample mean is computed. what
Its probability distribution is as follows. Find the standard deviation of the number of houses sold. A. 2.25 B. 2.62 C. 1.62 D. 6.86 E. 4.45.
q1. in a recent study of 154 households 54 had air conditioning. find the 95 confidence interval of the true
What is the probability that none of the three parents condone spanking as a regular form of punishment for their children?
the manager of an accounting office at a large hospital was interested in studying the problem of errors in the entry
How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis?
1.a manufacturer receives parts from two suppliers. an srs of 400 parts from supplier 1 finds 20 defective. an srs of
1.suppose you hear an old-timer say why in my day kids were much more respectful and didnt cause as much trouble as
What is the probability that a simple random sample of automobile insurance policies will have a sample mean within $25 of the population mean the for each of the following sample sizes: 30, 50, 100, 400?
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