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Regression inference. Infants who cry easily may be more easily stimulated than others. This may be a sign of higher IQ. A snap of a rubber band on the sole of the foot caused the infants to cry. They later measured the children's IQ at age three years using the Stanford- Binet IQ test.
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Infants who cry easily may be more easily stimulated than others. This may be a sign of higher IQ. A snap of a rubber band on the sole of the foot caused the infants to cry. They later measured the children's IQ at age three years using the Stanford-Binet IQ test.
Explanatory variable • Response variable • Correlation: • Coefficient of determination:
Regression model • Sample SD about residuals (standard error or SE)
Slope inference • Estimate of slope • t* • SE of slope • 95% CI for true slope