A toothpaste manufacturer claims that children brushing their teeth daily with his company’s product (brand A) will have fewer cavities than children using brand B. In a carefully supervised study, the number of cavities in a sample of 5 children using brand A toothpaste was compared with the number of cavities in a sample of 5 children using brand B toothpaste. Using the information below, assess whether there is a significant difference in the mean number of cavities across the two groups. Use an alpha level of .05.Obtained value:Critical/ cut-off value:Conclusion: Brand A Brand BMean = 1.1 Mean = 4.3SS = 12 SS = 10

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Answered: A toothpaste manufacturer claims that…

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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A toothpaste manufacturer claims that children brushing their teeth daily with his company’s product (brand A) will have fewer cavities than children using brand B. In a carefully supervised study, the number of cavities in a sample of 5 children using brand A toothpaste was compared with the number of cavities in a sample of 5 children using brand B toothpaste. Using the information below, assess whether there is a significant difference in the mean number of cavities across the two groups. Use an alpha level of .05.
1. Obtained value:
2. Critical/ cut-off value:
3. Conclusion:

Brand A Brand B

Mean = 1.1 Mean = 4.3

SS = 12 SS = 10

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