Statistical Analysis Tests

Question 1

1 sample T - test

Answer 1

Used to see if the mean is different from a proposed value

Question 2

2 sample T - test

Answer 2

Used to see if the means of two independent groups are significantly different

Question 3

Mann Whitney U test

Answer 3

Non-parametric alternative to 2 sample T- test when data do not satisfy normality condition

Question 4

Kruskal-Wallis test

Answer 4

Non parametric alternative to an ANOVA

Question 5

1 way ANOVA (Analysis of Variance)

Answer 5

Used to compare the means of three or more independent groups

Question 6

1 - proportion Z test

Answer 6

Statistical test to see if a sample proportion is different from a claimed proportion

Question 7

2 - proportion Z test

Answer 7

Used to see if two different proportions are different

Question 8

Chi Square GOF

Answer 8

One sample one variable

Test to see if sample proportions match given proportions

Question 9

Chi Square Homogeneity

Answer 9

Two samples one variable

EX: Are the proportions of colors the same between Welches and Mott’s gummies

Question 10

Chi Square Independence/Assosiation

Answer 10

Used to see if there is an association between two events

Question 11

Shapiro-Wilk Test

Answer 11

Statistical test to determine if data is normal when n<30