Last

year x This year y 11.9 15.4

19.5 26.7

11.2 18.2

14.1 16.7

14.2 13.2

5.2 16.4

20.7 21.1

11.3 12.0

-1.1 12.1

3.9 7.4

12.9 11.5

12.4 23.0

12.5 12.7

2.7 5.1

8.8 18.7

7.2 9.9

5.9 18.9

(a-1) State the 95% confidence interval for the slope. (Round your answers to 4 decimal places.)

The confidence interval is from ? to ?

(b-1.) Find the t statistic for the slope and its p-value. (Round your t statistic value to 3 decimal places and p-value to 4 decimal places.)

T statistic ?

P-value ?