STA3032 Quiz 8 - Dye A 1.0 2.0 1.2 3.0 Dye B 3.0 3.2 2.6...

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NAME (in CAPITALS): UFID Section: 7370 / 7393 UNIVERSITY OF FLORIDA DEPARTMENT OF STATISTICS STA3032 QUIZ 8 Spring 2011 Problem 1 on page 441 (Section 6.7) A crayon manufacturer is comparing the effects of two kinds of yellow dye on the brittleness of crayons. Dye B is more expensive than dye A, but it is thought that it might produce a stronger crayon. Four crayons are tested with each dye and the impact strength (in joules) is measured for each. The results are as follows:
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Unformatted text preview: Dye A 1.0 2.0 1.2 3.0 Dye B 3.0 3.2 2.6 3.4 Show ALL steps of hypothesis testing in your answer to the following questions. Explain what you are doing and why. a) Can you conclude that the mean strength of crayons made with dye B is greater than that of dye A? PUT YOUR ANSWER TO PART b ON THE BACK. b) Can you conclude that the mean strength of crayons made with dye B exceeds that of crayons made with dye A by more than one joule?...
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