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You plan to start saving for your son's college education. He will begin college when he turns eighteen and will need $4,000 then and in each of the following three years.
You will make a deposit at the end of this year in an account that pays 6 percent compounded annually and an identical deposit at the end of each year, with the last deposit occurring when he turns eighteen.
If an annual deposit of $1,484 will allow you to reach your goal, how old is your son now?
the yearly cost of dental claims for the employees of the local shoe manufacturing company is normally distributed with
a poll is given showing 25 are in favor of a new building project.if 9 people are chosen at random what is the
The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons. Compute the probability that the steel mill will produce more than 150 metric tons next week.
Hypertensive experimental (n=100) is 14%, placebo (n=100) is 22%. Generate a 95% Confidence interval for difference in proportions of patients with hypertension between groups.
Find a 90% confidence interval for the difference between the proportion of men and the proportion of women who approved of Reagan's performance. What assumption do you make to use this method?
Estimate demand for the next four weeks using a four-week moving average as well as simple exponential smoothing with a = .01. Evaluate the MAD, MAPE, MSE, bias and TS in each case. Which of the two methods do you prefer? Why?
When the machine is properly calibrated, what is the probability that the mean for a simple random sample of this size will be at least 26.2 seconds? Based on the probability determined in part (b), does it seem likely that the machine is properly..
Tweleve cases of leukemia are reported in people living in a particular census tract over a 5 year period. Is this number of cases abnormal if only 6.7 cases would be expected based on national cancer incidence rates?
what role does sample size play in the accuracy of statistical inference? why is the method of selecting the sample
Suppose that an e-business on the Internet receives an average of 5 orders per hour. Assume that the number of orders follows a Poisson process. What is the probability that up to one hour will elapse until two orders are received?
the generation of children raised in the 1990s and 2000s has been dubbed generation m because of the impact of media on
Hypothesis test for the difference between two means - To make the data comparable, certain features, such as the deductible amount and limits of liability, are standardized.
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