With reference to Exercise 7.5 on page 304,
(a) Evaluate s²;
(b) Construct a 95% confidence interval for β₀;
(c) Construct a 95% confidence interval for β₁.

Data From Exercise 7.5

Temperature, x        Converted Sugar, y
1.0.....................................8.1
                                    1.1.....................................7.8                                    
1.2.....................................8.5
1.3.....................................9.8
1.4.....................................9.5
1.5.....................................8.9
1.6.....................................8.6
1.7.....................................10.2
1.8.....................................9.3
1.9.....................................9.2
2.0.....................................10.5