Stats Final Part I Flashcards Preview

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Flashcards in Stats Final Part I Deck (16):
1

R squared

Percent of variance explained by x value

2

P-Value

Rejects null hypothesis if less than .05

3

What are the 2 conditions for t distribution?

Collect simple random sample from less than 10% of population
Verify there is little to no skew

4

Paired Data

every observation in one set is connected to every observation in a different set

5

What will change the Chi Square distribution graph?

Degrees of Freedom

6

What is the chi square distribution parameter?

Degrees of freedom

7

Line of Best Fit

Linear line that goes through the greatest amount of data points

8

For numerical data what graph would you use?

Histogram

9

What does Correlation stand for?

R

10

With Categorical data what graph do you use?

Bar graph

11

Chi Square

Measure of expectations versus results

12

Degrees of Freedom

Influences shape, center and spread of chi square distribution graph

13

Correlation

Strength of linear relationship between two variables

14

What is the symbol for chi square?

χ²

15

What are 2 conditions for chi square test?

Independent from all other cases
Sample size must be greater than 5

16

Residual

Variation in the data after accounting for the line of best fit

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