In: Statistics and Probability
You want to study an agricultural treatment to remove a pest on citrus plants. Suppose you have a citrus farm. The presence of the pest is measured by the productivity of the plant. Suppose that before and after applying the treatment the productivity of 9 plants was measured. Measurements are in numbers of bags and are in the following table:
Find the confidence interval to see if there is an improvement in productivity with the treatment of the pest. Determine with 95% confidence the interval for the average difference in citrus productivity.
Before |
35 |
28 |
33 |
42 |
38 |
43 |
36 |
26 |
35 |
After |
38 |
33 |
37 |
41 |
40 |
44 |
39 |
28 |
39 |