Pines Soil T -e Present Absent Sandy Loamy Muddy 3. (14 pts 7 pts each part) The table at right categorizes 100 plots among three soil types AND by whether or not pine trees were present a). Using MINITAB, examine the null hypothesis that there is no relationship between soil type and the likelihood that a plot contains pine trees. Discuss your results. b). Compute the relative risk of a plot containing pine trees in sandy soil vs. muddy soil