Summarize the study without using any formal statistical terminology. There is no evidence that the mean weight change among the three exercise groups were different. The observed differences in mean weight change can be explained by chance variation alone. Regression True or False. Ordinary regression can be an appropriate model for analyzing data when there is a quantitative response variable and one or more categorical explanatory variables.
All variables are quantitative.
True or False. The criterion for selecting the best line in ordinary least squares regression is to make the sum of absolute residuals as small as possible. Minimize the sum of the squared residuals. The correlation 0.3 is the only plausible value. Correlations must be between -1 and 1.