How old is the abalone? - Abalone (sometimes called ear-shell) are a type of gastropod shellfish known for their colorful inside shell. The age (in years) of an abalone is determined by cutting the shell through the cone, staining it, and counting the number of rings through the microscope in a manner like counting the rings of a tree trunk. Because this is a tedious and time-consuming task, researchers sought to determine whether the approximate age of an abalone shellfish could be predicted using an easier-to-determine measurement. Use the results below of a sample of n = 200 randomly selected abalone shellfish to answer the questions that follow. Rings by Length Rings by Shell Weight 02 1 3.4 03 0.5 D.B 07 0.8 0.5 08 Length (mm) Shell weight (grams) Variable No. of Rings Length (mm) Shell Weight (grams) Mean 9.94 1 0.8312 Sample SD 3.1153 0.121 0.4597 Correlation No. of Rings Length 0.5523 Shell Weight 0.5448 1. Which variable, Length or Shell Weight, would serve as a better linear predictor of the number of rings of an abalone shellfish? OA Length, because it has a larger correlation with Rings than weight does OB. Length, because it has a smaler correlation with Rings than weight does OC. Shell Weight, because it has a smaler correlation with Rings than Length does OD. Shall Waight, because it has a larger correlation with Rings than Langth does 2. Use the summary results to compute the slope and intercept of the regression equation to predict Number of Rings from Length. Remnerber not to use a rounded value for b. when you are calculating bo. Submit your answers out to at least 6 decimal places. b = and bo 3. The oldest shelfish in the sample had a Length of 0.545 and a Shell Weight of 0.7505. Its observed Number of Rings was 22. Compute the expected Number of Rings of the shell using your linear regression from part 2, along with its residual. Submit your answers out to at least 4 decimal places. Expected number of rings and Residual 4. Fill in the blanks to correctly interpret the residual from part 3. ne number of rings for this shellfish. We know this because the residual value is ??? The regressk ??? overestimated underestimated