Chi Square + Nonparametric Stats

Question 1

Chi Square Goodness of fit

Answer 1

• One categorical variable

-Do frequencies in the observed data deviate from what is expected by chance

Question 2

Chi Square Test for independence

Answer 2

• Two categorical variables

-Are categorical variables X + Y independent of one another

Question 3

Types of Missing Data

Answer 3

Missing Completely at Random: No reason for the missing data

Missing Not at Random: Missing because of the value itself

Missing At Random: Missing because of another variable

Question 4

Missing Data Techniques: Listwise Deletion

Answer 4

Anyone with missing data gets removed

WORST

Question 5

Missing Data Techniques: Parawise Deletion

Answer 5

Retain score where we have it, different data for each analysis

Question 6

Missing Data Techniques: Multiple Imputation

Answer 6

Create several data sets with different values for the missing data and then run each analysis and combine them

Best One

Question 7

Missing Data Techniques: Single Imputation

Answer 7

If you are missing data, you just put the average of the other songs