(Exhibit 6)Given the following data,

xi	2	6	9	13	20
yi	7	18	9	26	23

Refer to Exhibit 6. Develop a 95% confidence interval for the expected value of y when x=4.

which one is correct

a. (0.6853,21.8853)

b. (-1.735785, 21.8853)

c. ( -1.735785, 24.13578)

d. (-0.6853, 24.13578)

e. (-0.16853,21.8853)