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Statistics / The Practice of Statistics 5 / Chapter 12 / Problem AP4.41

The Practice of Statistics | 5th Edition | ISBN: 9781464108730 | Authors: Daren S. Starnes, Josh Tabor

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The bodys natural electrical field helps wounds heal. If diabetes changes this field, it

Chapter 12, Problem AP4.41

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QUESTION:

Section II: Free Response Show all your work. Indicate clearly the methods you use, because you will be graded on the correctness of your methods as well as on the accuracy and completeness of your results and explanations.

The body’s natural electrical field helps wounds heal. If diabetes changes this field, it might explain why people with diabetes heal more slowly. A study of this idea compared randomly selected normal mice and randomly selected mice bred to spontaneously develop diabetes. The investigators attached sensors to the right hip and front feet of the mice and measured the difference in electrical potential (in millivolts) between these locations. Graphs of the data for each group reveal no outliers or strong skewness. The following computer output provides numerical summaries of the data.

The researchers want to know whether the difference in mean electrical potentials between normal mice and mice with diabetes is statistically significant at the \(\alpha=0.05\) level. Carry out a test and report your conclusion.

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QUESTION:

Section II: Free Response Show all your work. Indicate clearly the methods you use, because you will be graded on the correctness of your methods as well as on the accuracy and completeness of your results and explanations.

The body’s natural electrical field helps wounds heal. If diabetes changes this field, it might explain why people with diabetes heal more slowly. A study of this idea compared randomly selected normal mice and randomly selected mice bred to spontaneously develop diabetes. The investigators attached sensors to the right hip and front feet of the mice and measured the difference in electrical potential (in millivolts) between these locations. Graphs of the data for each group reveal no outliers or strong skewness. The following computer output provides numerical summaries of the data.

The researchers want to know whether the difference in mean electrical potentials between normal mice and mice with diabetes is statistically significant at the \(\alpha=0.05\) level. Carry out a test and report your conclusion.

ANSWER:

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