- Exercise 14.32 Algo (Using the Estimated Regression Equation for Estimation and Prediction) Given are five observations for two variables, I and y. Use Table 2 of Appendix B. 2 1 N 3 4 5 YA S 3 8 5 12 14 Round your answers to two decimal places. a. Using the following equation: Sg. = 8 n ( )? Estimate the standard deviation of * when = 4 b. Using the following expression: 9 * ta/289 Develop a 95% confidence interval for the expected value of y when = 4 to c. Using the following equation: pred 1 1+ + 72 ( - Z)? Estimate the standard deviation of an individual value of y when = 4 d. Using the following expression: * Eta/28 pred Develop a 95% prediction interval for y when = 4 to