Exam 2

Question 1

T-test

Answer 1

Tests if 2 groups are different by checking the difference between means.
Results in finding the standard error, means and a p-value.
Compares one categorical and one continuous value.
Null hypothesis is no difference.

Question 2

Linear Regression

Answer 2

Tests if 2 things are related.
Results in an R-squared value, slope of the best fit line and a p-value.
Compares two continuous variables.
Null hypothesis is not related. (slope of zero)
“Percent variation in y is explained by variation in x.”
“Percent if null is true of slope at least this far from 0.”

Question 3

Chi-Squared

Answer 3

Tests if there is a difference between the observed and expected results.
Results in a p-value and frequencies.
Compares two categorical variables.
Null hypothesis is no difference.

Question 4

Genetic Drift

Question 5

Gene Flow

Question 6

Natural Selection

Question 7

Mutation

Question 8

Random Mating

Question 9

Hardy-Weinberg

Question 10

Evolution

Question 11

Inbreeding

Question 12

Frequency in next generation (calculation)