% returning Newbirds 74 66 81 568 52 11 73 12 62 15 52 16 45 17 62 18 46 18 60 19 46 20 38 20 Produce the scatterplot of the relationship in the (x,y) data. Describe the association between New Adults arriving and the percentage of returning birds: What is the general strength of the association? EXTRA: What is the R-squared value? What does this R-squared value specifically tell us about this association? ALSO: Apply linear regression analysis using Excel. Include the residual plot. TUTOR CHECK OF PLOTS: Scatterplot and Residual plot (Not done in class? You must attach your plots printed out) ALSO: Describe the residual plot. Is there any trend: is there a curve of data about the line of best fit OR are the data points randomly scattered either side along the linear trend line? What does this tell you about fitting a linear model to these data?