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The heights of young women aged 20 to 29 follow approximately the N(64, 2.7) distribution. Young men the same age have heights distributed as N(69.3, 2.8).
Height is measured in inches.
A young woman in that age group is randomly selected; independently, a young man in that age group is randomly selected. What is the probability that the young man is taller than the young woman by more than 5 inches?
A young woman in that age group is randomly selected; independently, a young man in that age group is randomly selected. What is the probability that the young man is taller than the young woman by more than 5.3 inches?
Describe what happens when the sample standard deviations get larger and repeat Part a with samples of size 150.
The information is reported below. Is it reasonable to conclude the percent is less now than five years ago?
The standard screening test for Down's Syndrome is based on combination of maternal age and the level of serum alpha-fetoprotein. Using this test 80% of Down's syndrome cases can be identified, while 5 % of normals are detected as positive.
you are a medical claims processor for humana. claims arrive at your desk at an average rate of three claims per day
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find the indicated z score. the graph depicts the standard normal distrubtion with mean 0 and standard deviation 1. the
Difference Between Formative and Summative Research Methods
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A number of years ago, there was a popular television game show called Let's Make a Deal. The host Monty Hall, would randomly select contestants from the audience and, as the title suggests
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In forestry there appears to be a correlation between the diameter of a tree at breast height and the totol height of the tree. For the following sample of ten white spruces first construct a scatter plot then find the correlation (r) between heig..
when calculating a sample size for a hypothesis test with the altenative hypothesis being ha micro1?micro2a use table
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