Answered: f. Report the test statistic. (Give…

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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Transcribed Image Text:b. How many samples of data are being compared in this study? 5 c. Are the samples random and independent? O Yes No ४ OO Uknown d. What test is used for this problem? Kruskal-Wallis Test e. Are the assumptions met for the selected test for this study? No, sample size is not 5 or more for at least one group No, samples are not independent and random Yes, samples are random and independent, and each sample size is 5 or more Perform the test and answer the following questions: f. Report the test statistic. g. p-value j. It is Select an answer (Give answer to 4 decimal places) (Give answer to 4 decimal places) At a 10% level of significance, fill in the blanks for the following statements. h. The p-value is Select an answer the significance level. i. The null hypothesis is for all the tire brands. 8 Select an answer that there is no difference in the population distribution of durability measure k. This p-value suggests that the observed samples Select an answer no difference in the population distribution of durability measure for all the tire brands. if there was 1. There is Select an answer evidence that the durability measure is different for at least one tire brand.

Transcribed Image Text:n below relates to five brands of tires chosen at random from local stores. Six tires of each brand and placed in random order on a machine that tested tread durability in thousands of miles. the durability measurements are different for different brands at 10% level of significance. Click this button to reveal the data Brand Durability Measure 1 55 1 56 1 59 1 55 1 60 1 57 39 42 43 41 41 222 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 5 5 5 5 5 5 Download CSV file 2 39 41 3 40 45454442 42 43 43 43 39 40 43 46 42 45 42 42 44

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