(b) The accompanying table presents data on yields relating to resistance to stainfor three materials (M1, M2 , and M3) treated with four chemicals in a ran-domized block design. (A low value indicates good stain resistance.)MaterialChemicalM1 M2M3TotalA59721В8415C8.139.30D46.818Total20362884(i) Construct an analysis-of-variance table.(ii) Test at the 0.05 level whether mean stain resistance for each chemical isthe same.(ii) Test at the 0.05 level whether the stain resistance for each materialt is thesame.

Given: M1 M2 M3 A 5 9 7 B 3 8 4 C 8 13 9 D 4 6 8

Answered: The accompanying table presents data on…

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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An experiment was conducted to investigate the variation of chemical Y solubility in water. The amounts in kilograms that dissolved in one liter of water at nine different temperatures were recorded, and the data was analyzed with IBM-SPSS software. Based on the data and IBM-SPSS software output given (refer images): i) Validate that the Pearson correlation coefficient value is 0.984ii) Compute the value of X in Table 2iii) Determine the proportion of variance in the dependent variableiv) Estimate mass that dissolved in the water if the temperature is set at 100C.
Highway engineers in Ohio are painting white stripes on a highway. The stripes are supposed to be approximately 10 feet long. However, because of the machine, the operator, and the motion of the vehicle carrying the equipment, considerable variation occurs among the stripe lengths. Engineers claim that the variance of stripes should be less than 16 inches squared. At α = .05, use the sample lengths given here from 12 measured stripes (in feet and inches) to test the variance claim. Assume stripe length is normally distributed. (in feet) (in inches) 9.85 118.2 9.7 116.4 9.9 118.8 9.5 114 9.15 109.8 10.1 121.2 10 120 9.8 117.6 9.9 118.8 10.3 123.6 10.1 121.2 10.2 122.4 The appropriate test for this question is: a Z-test for the true variance of stripe length. a t-test for the true mean of stripe length. a Chi-square test…
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A manufacturer of a computer system is interested in improving its customer support services. As a first step its marketing department has been charged with the responsibility of summarizing the extent of customer problems in terms of system failures. Over a period of six months, customers were surveyed and the amount of downtime (in minutes) due to system failures they had experienced during the previous month was collected. The average downtime was found to be 25.09 min and a variance of 144. If it can be assumed that downtime is normally distributed. Obtain a bound above 10% of the downtime of all the customers.

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