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Assume that, as a newspaper reporter, you must graph data showing that increased smoking causes an increased risk of lung cancer. Given that people might be helped and lives might be saved by creating a graph that exaggerates the risk of lung cancer, is it ethical to construct such a graph?
Find the probability that less than five students voted in the election and what is the probability that less than 30 accounts will be classified as delinquent?
The State Department of education requires local school districts to keep records on all students within their district. Determine if the following items are categorical or numeric variables.
in this exercise practice some techniques and procedures related to regression analysis using data more or less from
Mean income with an error of $500 can be constructed. If the population standard deviation is known to be $8,000 what sample size would the economist need to use?
as the population ages there is increasing concern about accident-related injuries to the elderly. an article reported
if you know that 48 of children born are male what is the probability of having 2 girls and one boy in a family of 3
What is the probability that she gets exactly 4 bull's-eyes? How many bull's-eyes do you expect her to get out of the 6 arrows and what is the standard deviation?
A random sample of 100 items is selected from a population of size 350. What is the probability that the sample mean will exceed 200 if the population means is 195 and the population standard deviation equals 20?
to boost holiday sales a jewelry store in bismarck north dakota is advertising the following promotion if more than
A pilot survey reveals that 5 of the 50 sampled hold two or more jobs. How many in the workforce should be interviewed to meet your requirements?
Recognize the given samples are independent samples or matched pairs.
Aa mean of 72 mph and a standard deviation of 3 mph. Find the interval that contains the sppeds of 95% of vehicles traveling on this section of i-95.
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