The question is #7 but i think we have to use the data from questin 37 ins section 9.3 so there screenshots attached Use the large-sample version of the Wilcoxon test atsignificance level .05 on the data of Exercise 37 inSection 9.3 to decide whether the true mean differencebetween outdoor and indoor concentrations exceeds .20. 36. Consider the accompanying data on breaking load(kg/25 mm width) for various fabrics in both anunabraded condition and an abraded condition ("TheEffect of Wet Abrasive Wear on the Tensile Propertiesof Cotton and Polyester-Cotton Fabrics," J. Testingand Evaluation, 1993: 84-93). Use the paired t test, asdid the authors of the cited article, to test Ho: p= 0versus H₂: >0 at significance level .01.123142 3FabricIndoor .07 .08 .09Outdoor .29 .68 .47549.8U 36.4 55.0 51.5 38.7 43.2 48.8 25.6A 28.5 20.0 46.0 34.5 36.5 52.5 26.5 46.537. Hexavalent chromium has been identified as aninhalation carcinogen and an air toxin of concern in anumber of different locales. The article "AirborneHexavalent Chromium in Southwestern Ontario" (J.of Air and Waste Mgmnt. Assoc., 1997: 905-910) gavethe accompanying data on both indoor and outdoorconcentration (nanograms/m³) for a sample of housesselected from a certain region.House46578.12 .12 .12 .13.54 .97 .35 .496 7 89.14.15.84.86IndoorOutdoorIndoorOutdoorIndoorOutdoor10 11 12 13 14 15 16 17.15 .17 .17 .18.28 .32 .32 1.5518 19House2026 27 28House21.20 22 .22 .231.59 .90 .52 .12House29.18.66.18 .18 .19.29 .21 1.0222 2324 25.23 .25 .26 .28.54 .88.49 1.2430 31 32 33.28 .29 .34 .39 .40 .45 .54 .62.48 .27 .37 1.26 .70 .76 .99 .36a. Calculate a confidence interval for the populationmean difference between indoor and outdoor con-centrations using a confidence level of 95%, andinterpret the resulting interval.b. If a 34th house were to be randomly selected fromthe population, between what values would you pre-dict the difference in concentrations to lie?38. Adding computerized medical images to a databasepromises to provide great resources for physicians.

Use the large-sample version of the Wilcoxon test at significance level .05 on the data of Exercise 37 in Section 9.3 to decide whether the true mean difference between outdoor and indoor concentrations exceeds .20.

Use the large-sample version of the Wilcoxon test at significance level .05 on the data of Exercise 37 in Section 9.3 to decide whether the true mean difference between outdoor and indoor concentrations exceeds .20.

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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