The LSD Multiple Comparison Test results arebelow:Multiple ComparisonsDependent Variable: Weight_GainsLSDMeanDifference (I-J)95% Confidence Interval(1) Group 0) GroupStd. ErrorSig.Lower Bound Upper BoundDiet ADiet B.4000.2234.092-.074.874Diet C.5200.2234.033.046.994Diet D.0000.22341.000-.474.474Diet BDiet A-.4000.2234.092-.874.074Diet C.1200.2234.599-.354.594Diet D-.4000.2234.092-.874.074Diet CDiet A-.5200.2234.033-.994-.046Diet B-.1200.2234.599-.594.354Diet D-.5200.2234.033-.994-.046Diet DDiet A.0000.22341.000-.474.474Diet B.4000.2234.092-.074.874Diet C.5200.2234.033.046.994*. The mean difference is significant at the 0.05 level.Select all answer that are correct about thistest.None of these choices are correct.O Do not reject the null hypothesis. All means areequal. I do not need the LSD multiple comparisontests.F-Critical Value is 3.24O F-Critical Value is 2.25O Reject the null hypothesis. All means are notequal. Diet C is different compared to Diet A andD. A study is developed to examine the effects ofvitamin and milk supplements on infant weightgain. Four diet plans are considered: Diet Ainvolves a regular diet plus the vitaminsupplement, Diet B involves a regular diet plusthe special milk formula, Diet C is our controldiet (ie. no restrictions or special considerations,and Diet D involves a regular diet plus thevitamin and the special milk formula. Twentyinfants are selected for the investigation andeach is randomized to one of the fourcompeting diet programs.The descriptive statistics for the 4 groups areshown below:Weight_GainsStd.DeviationNMeanStd. ErrorDiet A2.080.4324.1934Diet B1.680.3768.1685Diet C1.560.3362.1503Diet D52.080.2387.1068Total201.850.4033.0902An ANOVA was done at the 0.05 level ofsignificance to test HO: All group means areequal vs HA: atleast one group mean is noteequal. The ANOVA showed the F statistic tobe 2.92.The LSD Multiple Comparison Test results arebelow:

Solution: Given information: k= 4 groups n=20 total observations

Answered: A study is developed to examine the…

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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Researchers are investigating whether people who exercise with a training partner have a greater increase, on average, in targeted exercise intensity compared with people who exercise alone. Two methods of collecting data have been proposed. Method I: Recruit volunteers who are willing to participate. Randomly assign each participant to exercise with a training partner or to exercise alone. Method II: Select a random sample of people from all the people who exercise at a community fitness center. Ask each person in the sample whether they use a training partner, and use the response to create the two groups. (a) For each method, the researchers will record the change in targeted exercise intensity for each person in the investigation. They will compare the mean change in intensity between those who exercise with a training partner and those who do not. (i) Describe the population of generalization if method I is used. Explain your answer. (ii) Describe the population of…
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