wk6

Question 1

Inferential statistics

Answer 1

statistical tests that make inferences about the data.

whether they are significant differences or relationships

Question 2

Descriptive statistics

Answer 2

Describe the data

Question 3

Test statistics

Answer 3

A single number that we will then use to judge if the hypothesis is supported or not

Question 4

Skewed distribution

Answer 4

It is not symmetrical around the mean

Question 5

Kurtosis

Answer 5

the pointedness of the distributions.
flat and short = platykurtic
thin and tall = leptokurtic

Question 6

Null hypothesis significance testing

Answer 6

test the null hypothesis

Question 7

probability

Answer 7

expressed from 0-1
probability of getting this statistic if the null hypothesis is true.
small probability = infer support for research hypothesis
large probability = research hypothesis has not been supported

Question 8

alpha level

Answer 8

probability to be less than 0.05

Question 9

Statistical significance

Answer 9

If the probability associated with the test this distich is listed on the Alpha level it is statistically significant

Question 10

Type one error

Answer 10

and incorrect reason to reject the null hypothesis. stating that there is an effect when in fact there is no effect

Question 11

Type II error

Answer 11

Incorrect reason to fail to reject the null hypothesis. state there is no effect when in fact there is one