How do the average weekly incomes of electricians and carpenters compare? A random sample of 17 regions in the United States gave the following information about average weekly income (in dollars). (Reference: U.S. Department of Labor, Bureau of Labor Statistics.)Region123456789Electricians469715596464738693748573809Carpenters544817511474681505786659478Region1011121314151617Electricians592596706574865597597652Carpenters487643678381818607555507Does this information indicate a difference (either way) in the average weekly incomes of electricians compared to those of carpenters? Use a 10% level of significance.(a) What is the level of significance?(b) Compute the sample test statistic. (Use 2 decimal places.)(c) Find the P-value of the sample test statistic. (Use 4 decimal places.)

Given: a) The level of significance (α) = 10% that is 0.10 Sample size (n) = 17 The hypotheses are…

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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How do the average weekly incomes of electricians and carpenters compare? A random sample of 17 regions in the United States gave the following information about average weekly income (in dollars). (Reference: U.S. Department of Labor, Bureau of Labor Statistics.)

Region	1	2	3	4	5	6	7	8	9
Electricians	469	715	596	464	738	693	748	573	809
Carpenters	544	817	511	474	681	505	786	659	478

Region	10	11	12	13	14	15	16	17
Electricians	592	596	706	574	865	597	597	652
Carpenters	487	643	678	381	818	607	555	507

Does this information indicate a difference (either way) in the average weekly incomes of electricians compared to those of carpenters? Use a 10% level of significance.

(a) What is the level of significance?

(b) Compute the sample test statistic. (Use 2 decimal places.)

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