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Statistics / Introduction to Probability and Statistics for Engineers and Scientists 5 / Chapter 10 / Problem 6

Introduction to Probability and Statistics for Engineers and Scientists | 5th Edition | ISBN: 9780123948113 | Authors: Sheldon M. Ross

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Twenty overweight individuals, each more than 40 pounds

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QUESTION:

Twenty overweight individuals, each more than 40 pounds overweight, were randomly assigned to one of two diets. After 10 weeks, the total weight losses (in pounds) of the individuals on each of the diets were as follows: Weight Loss Diet 1 Diet 2 22.2 24.2 23.4 16.8 24.2 14.6 16.1 13.7 9.4 19.5 12.5 17.6 18.6 11.2 32.2 9.5 8.8 30.1 7.6 21.5 Test, at the 5 percent level of significance, the hypothesis that the two diets have equal effect.

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QUESTION:

Twenty overweight individuals, each more than 40 pounds overweight, were randomly assigned to one of two diets. After 10 weeks, the total weight losses (in pounds) of the individuals on each of the diets were as follows: Weight Loss Diet 1 Diet 2 22.2 24.2 23.4 16.8 24.2 14.6 16.1 13.7 9.4 19.5 12.5 17.6 18.6 11.2 32.2 9.5 8.8 30.1 7.6 21.5 Test, at the 5 percent level of significance, the hypothesis that the two diets have equal effect.

ANSWER:

Step 1 of 4

The data for weight loss corresponding to diets 1 and 2 is given.

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