iven are five observations for two variables, x and y. (Round your answers to two decimal places.)xi 3 12 6 20 14yi 60 35 55 5 15(a) Estimate the standard deviation of ŷ* when x = 7.(b) Develop a 95% confidence interval for the expected value of y when x = 7.(c) Estimate the standard deviation of an individual value of y when x = 7.(d) Develop a 95% prediction interval for y when x = 7.