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The Journal of American Medical Association reported on an experiment intended to see if the drug Prozac could be used as a treatment for the eating disorder aneorexia nervosa. Subjects which were women treated for anorexia were divided into two groups. Of the 49 who received Prozac, 35 were deemed healthy a year later, compared to 32 of 44 who got the placebo.
Find a 95% confidence interval for the difference in outcomes.
A) (-0.044 , 0.018)
B) (-0.167 , 0.141)
C) (-0.200 , 0.170)
D) (-0.230 , 0.204)
a. What decision would maximize expected profits? b. What is the maximum amount that should be paid for a perfect forecast of the economy?
Suppose the annual return on XYZ stock follows a normal distribution with mean 0.12 and standard deviation 0.30.
The manufacture of a new compact car claims the miles per gallon (mpg) for the gasoline consumption follow a normal distribution with mean of 25.9 mpg and standard deviation of 9.5 mpg . if 36 such cars are tested , what is the probability the ave..
assume that the average full time college student in the u.s. requires a total of 10500 per year to cover the costs of
Calculate the appropriate disease frequency rate. Show your work. The cumulative incidence rate in a population of 100,000 people where 9 new cases of disease were reported within 1 year.
Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 of the claims have been padded?
List all outcomes corresponding to the five smallest possible values of Y, and state which Y value is associated with each one.
A political science professor is interested in finding out whether there is a relation between political affiliation and attitude towards a recent supreme court ruling about challenges to federal affirmative-action programs.
A sample of 3 is taken from a population of 12 engines. what is the probability that out of 3 taken, at least one is english standard engine?
a fair six-sided die with numbers 123456 is rolled independently 500 times. approximate the probability that the sum is
let x have a poisson distribution with mean m. show that the most likely value for x to assume is m with the following
The company you work for employs 585 assembly-line workers - 526 men and 59 women. 16 men and 10 women have been laid off.
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