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The health department reports a 1% rate of the HIV virus for the "at-risk" population. Under certain conditions, a preliminary screening test for the HIV virus is correct 90% of the time. One person is randomly selected from the at-risk population.
a. What is the probability that the selected person has the HIV virus if it is known that this person has tested positive in the initial screening?
b. What is the probability that the selected person has the HIV virus if it is known that this person has tested negative in the initial screening?
Assume that you researched insurance industry statistics and found out that the probability of major accident is 0.06%, and that the probability of a fender bender is 0.15%. What is the expected value decision? Would you choose this? Why or why no..
Demonstrate correct use of descriptive statistics. Demonstrate proficiency in hypothesis testing. Evaluate the results of a statistical analysis.
1. the following table represents the u.s. sources of electrical
a marketing survey involves product recognition in new york and california. of 558 new yorkers surveyed 193 knew the
In a field study of mating behaviour in the Mormon cricket, a biologist noted that some females mated successfully while others were rejected by the males before coupling was complete.
q1. for each of the following state the null hypothesis and the alternative hypothesis.a the publisher of celebrity
There is evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 3.841 > 2.773
A sports enthusiast created an equation to predict Victories (the team’s number of victories in the National Basketball Association regular season play) using predictors FGP (team field goal percentage), FTP (team free throw percentage), Points = (te..
Managers from accounting department and information technology department. What is the probability that the committee will contain at least two managers from accounts departments.
A doctor knows from experience that 20% of the patients to whom he gives a high blood pressure drug will have undesirable side effects. Assume the doctor gives that drug to ten of his patients
This model is fit to the data using the method of least squares using statistical software, and the following ANOVA table is obtained
How much variability will you have if you predict sales with this model?
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