1. Statistical tools for hypothesis testing:
Goodness-of-fit to a specific mathematical model
chi-square (C2)
linear regression
Difference between population means
t-test
analysis of variance (ANOVA)

2. Most famous statistical tests: linear regression (with Pearson)
Francis Galton ( )
Most famous work:
Natural Inheritance
Most famous statistical tests:
linear regression (with Pearson)
fingerprint matching

3. Most famous work (18 papers):
Karl Pearson ( )
Most famous work (18 papers):
Mathematical contributions to the study of evolution
Most famous statistical tests:
chi-square
linear regression (with Galton)

4. H1. Girls are smarter than boys, therefore more girls than boys will take BIOL 354.

5. 65 girls
54 boys
Are there more girls than boys?
Are there significantly more girls than boys (i.e., more girls than we expect by chance alone)?

6. H1. Boys are smarter than girls, therefore more boys than girls will TA BIOL 354.

7. H1. Boys and girls are equally smart, therefore their average quiz scores in BIOL 354 will be the same.
H2.

8. Boys mean score: 16.9
Girls mean score: 16.7

9. H1. The longer you’ve been at UW the smarter you are, as reflected by quiz scores in BIOL 354.

10. P = 0.8
r = 0.06 (95%CI: to 0.48)