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Activity 1: Possum Data The possum data set1 consists of nine morphometric measurements on each of 104 mountain brushtail possums, trapped at seven sites from
Activity 1: Possum Data The possum data set1 consists of nine morphometric measurements on each of 104 mountain brushtail possums, trapped at seven sites from Southern Victoria to central Queensland." The complete data set is available on Kaggle1. 1https://www.kaggle.com/datasets/abrambeyer/openintro-possum Research Question: Can we use total length to predict a possum's head length? We will consider two morphometric measurements: Total Length (centimeters) and Head Length (millimeters) Exploratory Data Analysis When considering the research question, identify the two variables Predictor (Explanatory) Variable: Response Variable: Use Minitab to first create a scatterplot. Minitab> Graph > Scatterplot How would you characterize the association between these two variables? linear or nonlinear? negative, none, or positive? Analysis: Linear Regression and R2 Is it appropriate to consider the simple linear model for this data? Now Use Minitab to create a fitted line plot. Minitab: Stat > Regression > Fitted Line Plot Write out the regression equation that is provided by Minitab for the simple linear regression model. What is the regression equation? Write it below. What is the slope of the regression equation [...be sure to use proper notation]? Interpret it in context. What is the y-intercept of the regression equation [...be sure to use proper notation]
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