A 3-year study was carried out to see if fluoride toothpaste helps to prevent cavities. The dependent variable was the DMFS increment, the number of new Decayed,Missing, and Filled Surfaces. The table gives summary data.GroupSample SizeMeanStandard DeviationControl26012.838.31Fluoride2899.787.51Is fluoride toothpaste beneficial? Prove this by conducting the appropriate one-sided hypothesis test with a=0.01.(1) Critical Value (Round off to 3 decimal places):(2) Test Statistic (Round off to 2 decimal places):(3) Conclusion:(Type 'Reject HO' or 'Fail to Reject HO')

Given data n1=260, x̄1=12.83, s1=8.31, n2=289, x̄2 =9.78, s2=7.51, level of significance=ɑ=0.01

Answered: A 3-year study was carried out to see…

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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