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Suppose that pulse rates among healthy adults are normally with a mean of 80 beats/second and a standard deviation of8 beats/second. What proportion of healthy adults have pulse rates that are at most 72 beats/sec? Round your answer to at least four decimal places.
potholes occur on a major citys streets at a rate of 4.2 per mile. what is the probability that a quarter-mile stretch
Chrysler Corporation agrees to allow you to randomly select 40 of its new Dodge Caravans to test the highway mileage. Chrysler claims that the caravans get 28mpg on the highway.
Alcohol appears to be involved in a variety of birth defects, including low birth weight and retarded growth. A researcher would like to investigate the effect of prenatal alcohol on birth weight.
professor alpha and beta both teach statistics. the following table shows the distribution of their final grades. we
A researcher evaluating a gun training program in a large American city found that rapes dropped by 90% in the year following the training.
A lack of awareness of cultural differences or the assumption by one cultural group that another is inferior often results in painful personal and social encounters. Apply this thesis to discuss how this lack of awareness affects the relationships ..
This problem related to Basic Statistics and it discuss about the examples of qualitative and quantitative methods of data collection
Find the probability that fewer than 5 are satisfied with the airlines. (c)Find the probability that 8 or more are satisfied with the airlines.
hiv infection among intravenous drug users. found that 40 light users and 55 were heavy users were hiv positive.1
Will the sum of squared deviation scores be greater for the test or the exam (assume the same number of people sat both the test and the exam)? Why?
a) Paste the output from your randomization test here. b) What is the mean difference in credit card debt of the two groups in the original data?
The water level of a certain reservoir is depleted at a constant rate of 1000 units daily. The reservoir is re?lled by randomly occurring rainfalls. Rainfalls occur according to a Poisson process with rate 0.2 per day. The amount of water added to..
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