7) The breaking strength of nylon ropes made of two different materials (in hundreds of pounds) are shown below. Material 1: 487.3 444.5 467.7 456.3 449.7 459.2 478.9 461.5 477.2 488.5 501.2 475.3 467.2 462.5 Material 2: 499.7 470.0 469.5 481.5 485.2 509.3 479.3 498.3 Can you conclude that the standard deviation of the breaking strength differs between the two materials? Use the a = 0.05 level of significance. Show your work including how you get the test statistic and a graph showing the location of the test statistic and the critical value.

7) The breaking strength of nylon ropes made of two different materials (in hundreds of pounds) are shown below. Material 1: 487.3 444.5 467.7 456.3 449.7 459.2 478.9 461.5 477.2 488.5 501.2 475.3 467.2 462.5 Material 2: 499.7 470.0 469.5 481.5 485.2 509.3 479.3 498.3 Can you conclude that the standard deviation of the breaking strength differs between the two materials? Use the a = 0.05 level of significance. Show your work including how you get the test statistic and a graph showing the location of the test statistic and the critical value.

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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Question

7) The breaking strength of nylon ropes made of two different materials (in hundreds of pounds)
are shown below.
Material 1: 487.3 444.5 467.7 456.3 449.7
459.2 478.9 461.5 477.2
488.5 501.2 475.3 467.2 462.5
Material 2:
499.7 470.0 469.5 481.5 485.2
509.3 479.3 498.3
Can you conclude that the standard deviation of the breaking strength differs between the two
materials? Use the a = 0.05 level of significance. Show your work including how you get the
test statistic and a graph showing the location of the test statistic and the critical value.

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