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1) A bag has 10 marbles in it: 5 blue, 3 red, 2 purple. Three marbles are selected with replacement. What is the probability that at least one is blue?
2) A fair six-sided die is rolled twice. What is the probability both numbers are even? Round to the nearest hundredth.
blood pressure is a measure of the blood force against the walls of the arteries. the larger value represents the
If the spring is unstretched when θ = 0° and the bracket achieves its equilibrium position when θ= 32°, determine the stiffness k of the spring and the horizontal and vertical components of reaction at pin A.
a large chain retailer purchases a certain kind of electronic device from a manufacturer. the manufacturer indicates
If you observed three patients who have had medication errors in the sample, would you believe that he hospital's medication error rate was comparable to the national average? Give reasons for your conclusions.
Use the normal approximation to the binomial distribution to determine (to four decimals) the probability of getting 7 heads and 7 tails in 14 flips of a balanced coin. Also refer to the binomial probabilities table of "Statistical Tables" to find..
Using the confidence interval when conducting a two-tail test for the population mean we do not reject the null hypothesis if the hypothesized value for:
Test the hypothesis that the median weight of NFL players is 250 pounds against the alter- native that it is greater at α = 0.05, using (a) the large sample sign test and (b) the Wilcoxon signed rank test.
A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical.
The formula h(s) = -32s2 + 400s + 8 models a rocket's height, h, in feet, s seconds after launching. Find the height, h(s), five seconds after launch.
To test the hypothesis that the median weight of 16-year-old females from Los Angeles is at least 110 pounds, a random sample of 200 such females was chosen. If 120 females weighed less than 110 pounds, does this discredit the hypothesis? U..
Evaluated that there is a 95% probability of only slight losses of around $1 million. Using decision tree analysis, determined whether bank must install new power generator.
Use graphical sensitivity analysis to find out range of probabilities of state of nature S1 for which each of decision alternatives has largest expected value.
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