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Question: A study by Peter D. Hart Research Associates for the Nasdaq Stock Market revealed that 43% of all American adults are stockholders. In addition, the study determined that 75% of all American adult stockholders have some college education. Suppose 37% of all American adults have some college education. An American adult is randomly selected.
a. What is the probability that the adult does not own stock?
b. What is the probability that the adult owns stock and has some college education?
c. What is the probability that the adult owns stock or has some college education?
d. What is the probability that the adult has neither some college education nor owns stock?
e. What is the probability that the adult does not own stock or has no college education?
f. What is the probability that the adult has some college education and owns no stock?
The sample variance was s^2=16.0. does the sample show sufficient reason to conclude that the population standard deviation is not equal to 3 at the 0.05 level of significance? use the p-value method.
Based on the sample results, the researcher concludes that the pulse rates of men have a standard deviation greater than 10 beats per minutes. Use a 0.05 significance level to test the researcher's claim.
A side effect of a certain anesthetic used in surgery is the hiccups, which occurs in about 10 percent of the cases. If three patients are scheduled for surgery today and are to be administered this anesthetic, compute the probability that
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if all cars in the usa ran with petrol blended with 20 bioethanol produced by enzymatic hydrolysis of cellulosic
A local bank wants to install motion detector burglar alarms. Each has a 70% chance of detecting a burglar. If the bank wants to be 99% certain of detecting a burglar how many need to be installed?
Discuss the factors to be considered in setting up appropriate channels of distribution for a major food producer introducing a new brand of yoghurt.
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if a person bought one share of google stock within the last year what is the probability that the stock on that day
a. What is the meaning of least squares in a regression model?
N = 500 is to be selected from the population. What is the probability that the sample proportion, will be within ± 3 percentage points of the true p, i.e., Pr{0.42 ≤ ≤ 0.48}?
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