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A recent study reported that the prevalence of hyperlipidemia (defined as total cholesterol over 200) is 30% in children 2- 6 years of age. If 12 children are analyzed,
A. What is the probability that at least 3 are hyperlipidemic?
B. What is the probability that 3 are hyperlipidemic?
C. How many would be expected to meet the criteria for hyperlipidemia?
A IRS auditor randomly selects 3 tax returns from 48 returns of which 9 contain errors. What is the probability that she selects none of those containing errors? Round to four decimal places.
The lifetime of automobile tires of a certain brand are found to follow an exponential distribution with mean 30 (in thousands of miles). Find the probability that one of these tires will last
What is Dutch book argument for the first axiom of probability (the one that says that the probability of a sentence is never less than 0 or more than 1)?
Prepare a frequency distribution from data given below that describes how long it took a person to drive to work in work week.
a researcher uses a repeated-measures study to compare two treatment conditions with a set of 20 scores in each
Conduct a one-tailed hypothesis test given the information below. A certain brand of fluorescent light tube was advertised as having an effective life span before burning out of 4000 hours.
a draw thenbspscatter plotnbspfor the variables.b compute thenbspcorrelation coefficient. usenbspthree
Compute a 90% confidence interval for the population mean, based on the sample 25, 27, 23, 24, 25, 24, and 59. Change the number from 59 to 24
it is thought that the application of a plasma coating that conatins submicron particles of tungsten carbide will
there are 7 seniors and 3 juniors in the statistics club and a team of 5 will be randomly selected to attend the joint
a charity receives 1700 contributions. contributions are assumed to be independent and identically distributed with
a professor at a loca community noted that the grades of hi s students were normally distrubuted with a mean of 74
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