The bond behavior of reinforcing bars is an important determinant of strength and stability. The article "Experimental Study on the Bond Behavior of Reinforcing Bars Embedded in Concrete Subjected to Lateral Pressure"t reported the results of one experiment in which varying levels of lateral pressure were applied to 21 concrete cube specimens, each with an embedded 16 mm plain steel round bar, and the corresponding bond capacity was determined. Due to differing concrete cube strengths in MPa), the applied lateral pressure was equivalent to a fixed proportion of the specimen's e, a e Also, since bond strength can be heavily influenced by the specimen's bond capacity was expressed as the ratio of bond strength (MPa) to Pressure • a1 a a 02 a2 2 3 03 03 04 Ratie e.123 0.100 e.1es G1n a133 0.1er e217 e172 e151 0263 0227 e 252 e310 Pressure 04 34 05 05 0.s 04 04 04 0.3es 029 es 0319 0312 0394 3 0320 Ratie ( Does a scatterplot of the data support the use of the simple linear regression model? OA scatterplot of the data shows a reasonably strong, negative, linear relationship between pressure and the bond capacity ratio and does not support the use of a simple linear regression model. O A scatterplot of the data shows a weak, positive, linear relationship between pressure and the bond capacity ratio and does not support the use of a simple linear regression model. O A scatterplot of the data shows a weak, negative, linear relationship between pressure and the bond capacity ratio and supports the use of a simple linear regression model. O A scatterplot of the data shows a reasonably strong, positive, linear relationship between pressure and the bond capacity ratio and supports the use of a simple linear regression model. OA scatterplot of the data shows a reasonably strong, negative, linear relationship between pressure and the bond capacity ratio and supports the use of a simple linear regression model. Use the accompanying Minitab output to give point estimates of the slope and intercept of the population regression line. (Enter your answers to five decimal places.) regression equation is Ratio - 0.101 + 0.461 Pressure SE Ceet The Predietor Coef Censtant 0.1 0.0130 7.74 0.c00 Pressure 0.03627 12.70 0.000 S- 0.0332397 R-Sg - 89.51 R-3qladj) - 88.9 Analysis of Variance Seurce DF egression 0.17830 0.130 161.37 0.000 Residual Ezor 19 0.0209 0.00110 Tetal 20 0.19929 epe wtercept a Calculate a point estimate of the true average bond capacity when lateral pressure is cou (Round your answer to four decimal places.) o What is a point estimate of the error standard deviation a? (Enter your answer to seven decimal places.) How would you interpret the point estimate of the error standard deviation a? O This represents the typical difference between a concrete specimen's actual bond capacity ratio and the lateral pressure predicted by the least squares regression line. O This represents the ratio predicted by the least squares regression line for a value of 1. O This represents the typical difference between a concrete specimen's actual bond capacity ratio and the ratio predicted by the least squares regression line. This represents the typical difference between the lateral pressure applied to a bar and the ratio predicted by the least squares regression line. O This represents the typical difference between the lateral pressure applied to a bar and the lateral pressure predicted by the least squares regression line. What is the value of total variation? (Enter your answer to five decimal places.) e What percentage of it can be explained by the model relationship? (Enter your answer to one decimal place.) x %