Given are five observations for two variables, x and y. x i 1 23 4 5 y i 4 7 6 11 13 Round your answers to two decimal places. a.Using the following equation: Estimate the standard deviation of ?*when x = 3. b. Using the following expression: Develop a 95%confidence interval for the expected value of y when x = 3. to c.Using the following equation: Estimate the standard deviation of anindividual value of y when x = 3. d. Using the followingexpression: Develop a 95% prediction interval for y when x = 3. Ifyour answer is negative, enter minus (-) sign. to