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It's believed that .05 of children have a gene that may be linked to juvenile diabetes. Researchers hoping to track 30 of these children for several years test 742 newborns for the presence of this gene.
What is the probability that they find enough subjects for their study?
Determine if there is any difference between the pulse rates of smokers and nonsmokers. Compute the p-value of the test. Can you draw any conclusions?
Use a graphical technique to compare the ages, household incomes, and education of the five groups of car buyers. (Do not use Box plots or Stem-and-Leaf Display).
explain some of the differences between the method of distribution functions the transformation method for finding the
Why do you think it is significant to describe both the measure of central tendency and the measure of dispersion when talking about a data set?
Suppose that we have a Poisson customer source, which has an arrival rate of 10 customers per hour.
Compute the expectation E[X] and variance Var(X) of X as a function of p, and determine the value of p for which Var(X) becomes maximal.
Description of data collection and analysis methods (how do you choose people for survey? Sampling plan or any others) Survey on according to the Australian market
Normal distribution with mean $60,000 and standard deviation $8000. Four electricians are selected at random from this population to be shipped to another region.
Suppose that students in a particular school are all very competent. For each individual, the probability that they will pass the proficiency exam (independent of thier classmates) is 0.99
suppose we are testing the null hypothesis ho20 and the alternative ha does not 20 for a normal population with a
assume you are requested to gather data on the time it takes for a single employee to process product returns at a
Multiple drugs are often used in treating hypertension. Suppose 10% of patients taking antihypertensive agent A experience gastrointestinal (GI) side effects, whereas 20% of patients taking antihypertensive agent B experience such side effects.
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