3. Given are five observations for two variables, T and y. Use Table 2 of Appendix B. 4 O 1 2 3 4 5 Is 5 O yi 4 7 6 14 6 O Round your answers to two decimal places. A-Z 7. a. Using the following equation: O 8. O (z* -I)2 n + E(21 - I)? 9. O Estimate the standard deviation of y * when r = 4. EE 7- b. Using the following expression: mited Activity Frame y * tta/28;. N d Develop a 95% confidence interval for the expected value of y when i = 4. to c. Using the following equation: (I * -I)? Spred = $ 1+ n Estimate the standard deviation of an individual value of y when I = 4. d. Using the following expression: y * tta/2Spred A+ Develop a 95% prediction interval for y when I = 4