Given are five observations for two variables, x and y.

x i	1	2	3	4	5
y i	4	7	5	11	14

Round your answers to two decimal places.

need help please

a. Using the following equation: sy^=sn1+(xix)2(xx)2 Estimate the standard deviation of y^ when x=3. b. Using the following expression: y^t/2sy^ Develop a 95% confidence interval for the expected value of y when x=3. to c. Using the following equation: spred=s1+n1+(xix)2(xx)2 Estimate the standard deviation of an individual value of y when x=3. d. Using the following expression: y^ta/2spred Develop a 95% prediction interval for y when x=3. If your answer is negati