Stats Pt 2

Question 1

Outlier

Answer 1

Data point that goes far outside the average value of a group of stats

Question 2

Use a t test when

Answer 2

Compare means of 2 groups

Determine whether a group has an effect on the population of interest, or whether two groups are different from one another

Small, random sample

Question 3

Use the Tuckey test when

Answer 3

Compare every mean with every other mean

Follow up to one way anova

Question 4

Use Dunnet’s test when

Answer 4

Test two or more experimental groups against a control

Compare every mean to control mean

Question 5

2 way anova null hypotheses

Answer 5

Population means of 1st factor are equal
Population means of 2nd factor are equal
No interaction between 2 factors

Question 6

2 way anova purpose

Answer 6

Evaluate effect of 2 factors on response of environment

Question 7

2 way anova conclusion

Answer 7

Significant interaction between effects on outcome (or not)