Hypothesis, P-Value, Errors

Question 1

What is the P-Value?

Answer 1

Probability that the hypothesis is right

Question 2

What is the alpha-level?

Answer 2

The threshold for the P-Value
Pre-determined prior the analysis

Question 3

What is a null hypothesis?

Answer 3

Hypothesis against the research question
It claims there is no difference in result

Question 4

What is an alternative hypothesis?

Answer 4

Claims there is a difference in result
Opposite to the null hypothesis

Question 5

When statistically testing the hypothesis, what do you measure the probability for?

Answer 5

Null hypothesis
You can never prove something is true but can only prove something is false

Question 6

How is significancy estimated?

Answer 6

Probability the difference occurred by chance
(P-Value)

Question 7

What are the 2 types of errors in statistical tests?

Answer 7

Type 1= False positive
Type 2= False-negative

Question 8

What is a type 1 error?

Answer 8

False-positive
Reject the null hypothesis when it is true

Question 9

What is a type 2 error?

Answer 9

False-negative
Not rejecting the null hypothesis when it is false

Question 10

What sign is >?

Answer 10

Greater than

Question 11

What sign is <?

Answer 11

Less than