(a) Use Graph Builder to Create a. scatterplot of sales per sq. ft (y axis) by median income in thousands of dollars (x axis) with colors that represent the number of competitors. Click Graph in JMP. Select Graph Builder. Drag Sales ($fsq.ft) to the Y spot on the graph. Drag Income ($000) to the x spot on the graph. Select Competitors and click Color (on the upper right corner of the plot)Above the plot there are several square boxes. Uncheck the box with a squiggle through it. This will make the curved line on the plot go away. Use the plot to commend on the relationship between sales per square feet, income and the additive effect of competitors. NOTE: the color scale on the plot will help you interpret the relationship between competitors for communities with similar median incomes