APFIVE Residual Plot Condition for Regression Inference
A researcher wants to construct a 95% confidence interval for the slope of a regression line. The data consists of 15 observations, and the residual plot shows a clear curved pattern. What should the researcher do?
A
Increase the confidence level to 99%
B
Transform the data or use a nonlinear model
C
Proceed with the interval but note the limitation
D
Remove outliers until the pattern disappears
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