HRT use Breast cancer incidence 46.3 103.3 40.6 105 39.5 100 36.6 93.8 30 83.5 Calculate the equation of the estimate regression line with HRT as the explanatory variable. What is the estimate average change in BCI associated with a 1% increase in HRT use? what would you predict the BCI to be in a yr when HRT use was 40%? Calculate and interpret the value of r squared.
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