WEEK 7

Question 1

define descriptive statistics

Answer 1

describes the properties or characteristics of a data set

Question 2

describe inferential statistics

Answer 2

infers information about the nature of differences or relationship in a population from a sample

Question 3

what is quantifying distribution

Answer 3

“kurtosis”= height” of the peak of the graph

• positive if pointy
• negative if flat
• normal distribution consists of -2 to +2
• negative skewed is to the right
• positive skewed is to the left

Question 4

define a T test

Answer 4

an equation to calculate the probability that a real difference exists between two data sets

P value= probability groups are the same

Question 5

define the hypotheses

Answer 5

a prediction about the nature of your findings

Question 6

describe the null hypotheses

Answer 6

the default position

Question 7

describe H0

Answer 7

there is no difference or change between groups or conditions

Question 8

define an alternative hypotheses

Answer 8

H1= there is a difference between or change between groups or conditions