| 16 January |
- Submit (by e-mail) a one-page resume of your experience and interest in
environmental statistics. Include related educational and work
experience. Indicate whether and how your job currently
involves environmental statistics. [15 - 30 min]
- Carefully review Chapter 1 (pp 1-12) and parts of Chapter 3 (pp 53-137; skip
109-132: we will come back to those sections later). [2 hr]
- Prepare answers to exercises
3.1, 3.2, 3.7, and 3.8.
(Skip 3.1 c-f and 3.2 e-f.) We will
discuss these in class. [1 - 2 hr]
- Create stem-and-leaf diagrams and letter summaries for the data shown in Table 3.12 (p
134) and Table 3.15 (p 136) [15 min].
- Create a spreadsheet, computer program, or calculator program to
generate summary statistics for a batch of data. Do not
use any built-in functions or macros (except for sorting and
ranking, where appropriate). Instead, compute the statistics
directly from the formulas (as provided in the textbook or obtained
elsewhere). The statistics should include:
 | Mean, Variance, Standard deviation (sd), Coefficient of
variation (cv) |
 | Maximum, Minimum, Median, Range [requires order statistics or
sorting] |
 | * Skewness, Kurtosis [harder] |
 | * Geometric mean, Geometric sd [requires logarithms] |
 | * Median absolute deviation (mad) [more complex] |
 | ** Trimmed mean, for arbitrary trimming between 0% and 50%
[tricky] |
At a minimum, do the first group. If you are more ambitious
or skilled, do as many of the remaining groups as you like. Test
your code on the "reference" and "cleanup" data
(Table 3.2, p 55). [1 - 3 hr]
- (Follow-up to 5.) Compare your results to the
results of any built-in macros or functions available in your
software. In particular, determine which "flavor" of
variance, sd, cv, and skewness your software uses and estimate how
many significant figures it is using in its calculations (if you
can). [0 - 30 min]
- Read the first part of Chapter 2 (pp 13-18) and all of
Chapter 4 (pp 139 - 199). You need not spend much time with Chapter 4, but
look at each page so you know what is in it. [1 hr]
- Explore the links to other Internet resources from these
pages. [15 min - as long as you like]
Total estimated time: 5:45 - 9:30+ hours |