- Entr All Non Integer Values To The Nearest 0 001 All Questions Are Worth 1 Point Each An Ecologist Is Interested Is Wh 1 (130.43 KiB) Viewed 22 times
Entr all non-integer values to the nearest 0.001. All questions are worth 1 point each. An ecologist is interested is whether there is a relationship between mean size of the leaves on oak trees and distance from the road because she suspects that pollution from cars may harm the trees and cause them to grow smaller leaves. She collects leaves from 8 trees that are different distances from the road and measures the mean size of the leaves on each tree to see if there is a relationship. Her predictor variable (X) is the distance from the road and her response variable (Y) is the mean size of the leaves. Her data (extra column labels included for your guidance and to plan work): Xi - Yi-Y (xi - X2 Gyi - y)2 SP 8 - 1 - 72 Y:-) (-2)2 Road Leaf Dist. size 2 8 6 13 9 12 11 20 15 17 19 22 24 18 26 26 30 25 Q1. Plot this data in the blank figure to the right. You will be shown 6 figures in the BeachBoard quiz and you must choose the one that matches yours. 20 15 10 5 Q2. Will this be a regression or correlation analysis? 0 Your choices will be: Regression Correlation 0 5 10 15 20 25 30 Calculate the equation for the best-fit line through this data. Q3. What is the slope of the best-fit line? b = ??? Q4. What is the Y-intercept of the best-fit line? a = ???