Stats Tests

Question 1

What is a T-test

Answer 1

tests the difference between means of two treatment groups measuring one variable. We did a t-test in lab 8 for Pmax, slope and light compensation point. If you have two enzymes and want to see which is more efficient use t-test

Question 2

What is a chi square

Answer 2

Looking at the expected and observed values and comparing the two. We used a chi square test in lab 9 and 10 for phenotypes of flies.

Question 3

What is an anova test

Answer 3

Analysis of variants, can measure multiple variables. Compares the F-critical to the F-ratio. If you have five enzymes and want to see which is most efficient use ANOVA.

Question 4

What happens if the f-ratio is bigger than the f-critical

Answer 4

We reject the null hypothesis

Question 5

What is the formula for f-ratio

Answer 5

Between group variability/ within group variability

Question 6

What size does the p-value have to be in a t-test or chi square test to doubt the null

Answer 6

0.05

Question 7

What is the equation for the chi square

Answer 7

((Observed-expected)^2)/Expected

Question 8

What is the equation for the standard curve

Answer 8

Y=mx+b
Y- absorbance
x-concentration