Solution Found!
In their book Time Series Analysis, Forecasting, and
Chapter 6, Problem 84E(choose chapter or problem)
In their book Time Series Analysis, Forecasting, and Control (Prentice Hall, 1994), G. E. P. Box, G. M. Jenkins, and G. C. Reinsel present chemical process concentration readings made every two hours. Some of these data follow (read down, then left to right).
17.0 16.7 17.1 17.5 17.6
16.6 17.4 17.4 18.1 17.5
16.3 17.2 17.4 17.5 16.5
16.1 17.4 17.5 17.4 17.8
17.1 17.4 17.4 17.4 17.3
16.9 17.0 17.6 17.1 17.3
16.8 17.3 17.4 17.6 17.1
17.4 17.2 17.3 17.7 17.4
17.1 17.4 17.0 17.4 16.9
17.0 16.8 17.8 17.8 17.3
Questions & Answers
QUESTION:
In their book Time Series Analysis, Forecasting, and Control (Prentice Hall, 1994), G. E. P. Box, G. M. Jenkins, and G. C. Reinsel present chemical process concentration readings made every two hours. Some of these data follow (read down, then left to right).
17.0 16.7 17.1 17.5 17.6
16.6 17.4 17.4 18.1 17.5
16.3 17.2 17.4 17.5 16.5
16.1 17.4 17.5 17.4 17.8
17.1 17.4 17.4 17.4 17.3
16.9 17.0 17.6 17.1 17.3
16.8 17.3 17.4 17.6 17.1
17.4 17.2 17.3 17.7 17.4
17.1 17.4 17.0 17.4 16.9
17.0 16.8 17.8 17.8 17.3
ANSWER:
Solution:
Step 1 of 2:
The data about the chemical process concentration is given.
17.0 |
16.7 |
17.1 |
17.5 |
17.6 |
6.6 |
17.4 |
17.4 |
18.1 |
17.5 |
16.3 |
17.2 |
17.4 |
17.5 |
16.5 |
16.1 |
17.4 |
17.5 |
17.4 |
17.8 |
17.1 |
17.4 |
17.4 |
17.4 |
17.3 |
16.9 |
17.0 |
17.6 |
17.1 |
17.1 |
16.8 |
17.3 |
17.4 |
17.6 |
17.4 |
17.4 |
17.2 |
17.3 |
17.7 |
16.9 |
17.1 |
17.4 |
17.0 |
17.4 |
17.3 |
17.0 |
16.8 |
17.8 |
17.8 |
17.3 |
We have to construct and interpret either a digidot plot or a separate stem-and-leaf and time series plot for this data.