According to the computer output in Table 9: (a) Predict the mean response when x = 3.

Question:

According to the computer output in Table 9:
(a) Predict the mean response when x = 3.
(b) Find a 90% confidence interval for the mean response when x = 3. You will need the additional information n = 25, = 1.793, and ˆ‘ (xi - )2 = 1.848.
(c) Find a 90% confidence interval for the mean response when x = 2. Interpret.
Table 9 Computer Output for Exercise 11.36