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Use mathematical induction to prove that : 1*2+2*3+3*4+....+n(n+1)(n+2)/3 for all n >_1 and (2) Find d=gcd (721 , 448), find integers s and t with d=721s + 448t, and put the fraction 448/721 in lowest terms.
What is the appropriate set of hypotheses to test such that a possible outcome of the test would indicate;
Families in the USA have a monthly magazine that discusses issues related to health and health costs. After surveying 23 of their subscribers
Compute the population mean, the population median, the population midrange, the population range, the population variance, the population standard deviation, and the population proportion of odd numbers. Verify the following results:
In a slow year, Deutsche Burgers will produce 2 million hamburgers at a total cost of $3.5 million. In a good year, it can produce 4 million hamburgers at a total cost of 4.5 million.
Standard deviation is $0.10. At α = 0.01, is there significant difference in price? Determine the 99% confidence interval of the difference in the means.
Explain in managerial terms what is meant by "use an alpha level = .05." Do you agree with her suggestion? If so, explain why. If not, explain why and indicate the alpha level you would use instead.
The rate of defects among CD players of a certain brand is 1.1%. Use the Poisson approximation to the binomial distribution to find the probability that among 240 such CD players received by a store, there is at most one defective CD player.
The top food snacks consumed by adults aged 18-54 are gum, chocolate candy, fresh fruit, potato chips, breath mints/candy, Ice cream, nuts, cookies, bars, yogurt, and crackers.
Compute the z score for the data company. Considering the altman model, comment on the likelihood that this firm will experience financial failures.
However, 2% of the Dallas clocks are defective. If you go shopping and buy a clock from this company, what is the probability that you buy a defective clock?
Consumer Reports published an article on some sport-utility vehicles they had tested recently. They reported some basic information about each of the vehicles and the results of some tests conducted by their staff.
Final scores averaged 66 for the treatment group; the SD was 21. For the control group, the figures were 59 and 20. What do you conclude?
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