10. Suppose an urn contains 8 balls. Find the number of ordered samples of sizes 3 with replacement. a. 336 b. 56 c. 512 d. 620
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- Is it possible that P(AB)=P(A)? Explain.An urn contains 8 balls numbered 1 through 8. If we select 3 balls without replacement and the order does not matter, how many samples are possible?Determine the sample size needed to estimate μ for the given situation E = 4, σ = 35, (1 - α) = 0.90 4 295 207 208
- Determine the sample size needed to estimate μ for the given situation E = 4, σ = 35, (1 - α) = 0.90 4 295 207 208 Group of answer choices 4 295 207 208Determine the sample size needed to estimate for the given situation. E = 4, = 35, (1 - ) = .90 a. 208 b. 295 c. 4 d. 207What mean would put 10% of he sample below it? u= 450 o= 25 n = 81
- A. Determine how many samples of size n = 2 can be made from a population with the following sizes. 1. N = 4 Answer: __________ 2. N = 8 Answer: __________ 3. N = 12 Answer: __________ 4. N = 16 Answer: __________Find the mode(s) for the given sample data of the height (in meters) of trees in a park. 7.29, 7.41, 7.56, 7.29, 7.88, 7.99, 7.62A) 7.56 meters B) 7.29 meters C) 7.577 meters D) 7.41 metersWhich of the following sample results yields a 95% CI for µ with the smallest width and why?(i) x = 28, s = 5, n = 61(ii) x = 32, s = 4, n = 30(iii) x = 25, s = 3, n = 20(iv) x = 40, s = 6, n = 121
- Suppose an urn contain 8 balls find the number of ordered sample's of size 3 without replacement. answer correctly.In a recent year, the most popular colors for light trucks were white, 30%; black, 17%; red, 14%; silver,12%; gray, 11%; blue, 8%; and other, 8%. A survey of light truck owners in a particular area revealed the following: White Black Red Silver Gray Blue Other 45 32 30 30 22 15 6 a=0.05, do the proportions differ from those stated?for a sample of 9 automobiles, the mileage (in 1000s of miles) at which the original front brake pads were worn to 10% of their original thickness was measured, as was the mileage at which the original rear brake pads were worn to 10% of their original thickness. The results were as follows: Car Rear Front 1 41.2 32.2 2 36.3 27.2 3 45.8 34.7 4 46.6 37.3 5 39.6 30.7 6 52.3 40.5 7 51.7 41.0 8 46.3 33.8 9 47.4 36.8 a)Construct a 99.8% confidence interval for the difference in mean lifetime between the front and rear brake pads. Let d represent the mileage of the rear pads minus the mileage of the front ones. Round the answers to at least two decimal places. b)Because the confidence interval (contains/does not contain) values above 10 (in 1000s of miles), it (contradicts/does not contradict) the claim that the mean lifetime for rear brake pads is more than 10,000 miles more than the mean lifetime for front brake pads.
