9. Suppose a regional market analyst believes the median repair cost estimates for Garage 1 is below that for Garage 2 (or the probability distribution of repair cost estimates for Garage 1 is shifted to the left of the probability of repair cost estimates for Garage 2). Use the Wilcoxon Signed Rank Test at the 0.05 level on the observations below to test this claim? Repair Repair Cost Estimate Garage 2 Cost Estimate Sample of Cars Garage 1 $ 710 $ 900 $ 1100 $ 890 $ 990 $ 910 $ 1030 $ 790 $ 1010 $ 1220 $ 880 $ 1040 $ 980 $ 1170 Car 1 Car 2 Car 3 Car 4 Car 5 Car 6 Car 7

9. Suppose a regional market analyst believes the median repair cost estimates for Garage 1 is below that for Garage 2 (or the probability distribution of repair cost estimates for Garage 1 is shifted to the left of the probability of repair cost estimates for Garage 2). Use the Wilcoxon Signed Rank Test at the 0.05 level on the observations below to test this claim? Repair Repair Cost Estimate Garage 2 Cost Estimate Sample of Cars Garage 1 $ 710 $ 900 $ 1100 $ 890 $ 990 $ 910 $ 1030 $ 790 $ 1010 $ 1220 $ 880 $ 1040 $ 980 $ 1170 Car 1 Car 2 Car 3 Car 4 Car 5 Car 6 Car 7

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The accompanying data represent the total travel tax (in dollars) for a 3-day business trip in 8 randomly selected cities. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. 68.04, 78.59, 68.11, 82.54, 80.06, 87.54, 100.71, 99.22 (a) Determine a point estimate for the population mean travel tax. A point estimate for the population mean travel tax is (Round to two decimal places as needed.) Part 2 (b) Construct and interpret a 95% confidence interval for the mean tax paid for a three-day business trip. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. There is a enter your response here% probability that the mean travel tax for all cities is between $enter your response here and $enter your response here. B. One can be enter your response here% confident that the mean travel tax…
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when a population distribution is symmetric, unimodal, without outliers?
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Find the mean, median, and mode for a random sample of eight U.S. corporations with the following percentage changes in earnings per share in the current year compared with the previous year: 0% 0% 8.1% 13.6% 19.4% 20.7% 10.0% 14.2%
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