It is thought that when the time spent by mushroom hunters in the field increases, there is an increase in the number of mushrooms called boletus edulis they collect. The table below lists the data on the mushroom numbers collected by hunters who spent 5 different time zones in the field. 1 0.5 Number of mushrooms (boletus edulis) collected 2 3 1 4 14 4 6 27 42 (a) Use both linear regression method and polynomial regression method to fit a straight line parabola to the following data in order to estimate the number of mushrooms collected by a hunter who spends 10 hours at the field (50 Points). (b) Calculate standard deviation (Sy), standard error of estimate (Sy/x) and r (30 points). (c) Solve this question using only Excel. Plot the data in Excel, and add "equation formula" and "2" on the graph you plotted, using Excel commands. Compare the "excel data" with Acti your "calculated findings" (20 points) Go to