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The zombie apocalypse has begun,and you are conducting tests to see whether or not members of the population have been infected.The latest reports from the Center for Disease Control indicate that fourteen out of every 1,300 people who have been bitten by a zombie contract the virus that will turn them. On the bitten subjects whom you know have contracted the virus and begun to turn, your test has indicated the presence of the virus 73% of the time. On the normal people in your lab, your test indicates the virus 4%of the time
a.What is the probability that a random person's test will come up positive?
b.If a random person's test comes back positive, what is the chance that they have not actually contracted the virus?
c.If a random person's test comes back negative, what is the chance that they have the virus and will become a zombie?
d.Justify whether or not you think your test is a good one
the employees of cartwright manufacturing are awarded efficiency ratings. the distribution of the ratings approximates
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suppose that a certain college class contains 65 students of these 35 are seniors 37 are economic majors and 7 are
another one i need these corrected so i can figure the correct way. please helpdf is wrong can not pool variances when
A student wanted to construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 9 students. Their average age was 19.1 years with a standard deviation of 1.5 years. What is the best point esti..
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What sample size is needed to obtain a 90 percent confidence interval for the mean protein content of meat if the estimate is to be within 1 pounds of the true mean value? Assume that the variance is 49 pounds.
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The formal addition rule expressed the probability of a or b as follows: p(a or b) =p(a)+p(b)-p(a and b). Rewrite the expression for p(a or b) assuming that the addition rule uses the exclusive or instead of the inclusive or (recall that the exclusiv..
What is the probability that a dog owner will spend more than $130 on medical care in a given year? What is the prbability that a cat owner will spend $160 or more on medical care in a given year?
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