You are performing an analysis for your research and you are…

You are performing an analysis for your research and you are checking the relationships between variables. In one step, you analyze the relationship between the dependent and independent variables. To do so, you look at this plot. Does it appear that these 2 variables are linearly related?  

Your colleague is using Multiple Linear Regression (MLR) to…

Your colleague is using Multiple Linear Regression (MLR) to conduct their research. The colleague is trying to test to ensure that they have met all of the assumptions expected when conducting a MLR analysis. The colleague shows you the following chart. What regression assumption is being tested with this plot?  

You have just recomputed the regression output we completed…

You have just recomputed the regression output we completed to determine whether or not the percentages of Republicans as a percentage of total registered voters by county in Florida has an effect on the COVID-19 fatality rate. Below is the output that you received from the multiple linear regression in Excel. Is the Multiple Linear Regression model itself statistically significant?