Removing outliers and using Student's T on the remaining data is an invalid procedure. Describe two...
Removing outliers and using Student's T on the remaining data is an invalid procedure. Describe two reasons why.
Homework Answers
1)Outliers should be rare. If they are not rare, the method (and hence the entire data set) is bad and/or not trustworthy.
2)If outliers are rare, they have no statistical impact. In small samples they will be extremely rare (what is not a statistical problem, although they may have a considerable impact these particular case where they in fact occur), in large samples they won't have any considerable levarage or impact.
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Removing outliers and using Student's T on the remaining data is
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#2, please explain There are 2 outliers in the data at 136.1 and 141.4 these two...
#2, please explain
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#2, please explain
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Data summarized below describe product yield as a function of two variables describing the concentrations (%) of two reagents in the process. Use this information to address the questions belovw 1. Observation Yield 62. 9 76.2 87.5 102.3 76. 2 77.5 76.8 77.4 78.7 XI X2 15 4 13 15 12 12 9 12 I) Show a plot of standardized residuals as a function of leverage. Briefly describe what you conclud from this figure m) Examine any points identified as...
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