Download 1 Boxplot of Residuals Normal Probability Plot

Boxplot of Residuals
Normal Probability Plot
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A Repeated-Measures Experiment
Researchers wanted to investigate the effect
of a drug on resting heart rate.
Ten subjects were injected with the drug.
The resting heart rate of each subject was
recorded at 5, 15, 30, 45, and 60 minutes
after injection.
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When the independence assumption is
violated, our estimate of s may overestimate
or underestimate the true value of s .
Thus our tests, confidence intervals, prediction
intervals, etc. cannot be trusted.
Analysis of dependent data is covered in
Statistics 402.
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