The data set shown below gives the calories and salt content in 17 brands of meat hot dogs.

• Enter the data set into excel. Using excel perform a least squares regression on the data set. Use Sodium as the y variable and Calories as the x variable. Make a scatter plot with the regression line plotted as well. Using excel compute the correlation coefficient.

• Insert the plot your created into a word document. Discuss the scatter plot and regression line. Are their outliers? Does your correlation coefficient support your analysis? Does it tell you anything else?

• If there is an outlier remove the outlier from the data set and repeat the previous two parts.

• Can you conclude that hot dogs with more calories will have more sodium (i.e. discuss correlation and causation)?