Solution 3.5 - Chemometrics: Data Analysis for the Laboratory and Chemical Plant

1. The graph is presented below.

2. The 3 and 5 point median smoothing functions are below.

3. The two graphs are presented below.

4. The graphs are as follows, corresponding to the answers to questions 2 and 3.

5. The graph is as follows.

6. The graphs of question 5 are quite valuable, and it looks as if there are discontinuities at times 9 and 13.

From question 3 it would suggest that the process variable is increasing slightly with time.