o When can we use the theory-based approach? Find p-value (from simulation) Standardized Statistics Confidence interval (calculation, interpretation) Making conclusion from the confidence interval (i.e. is 0 inside the confidence interval, what does that mean about the two groups) apter 10 Regression: quantitative response and explanatory Scatterplot: Form, direction, strength, unusual Correlation coefficient (r) 0 What are the possible values for r? 0 What values of r denote a strong relationship? Weak relationship? 0 For a large value of r, do points fall very close to the best fit line, or far away? What about for very small values? Best fit line o y versus 0 Interpreting the slope and y-intercept 0 Making predictions o What makes an observed point influential? Extrapolation Residuals 0 Calculation 0 Predict whether observed point is above or below the best fit line