Political Science 209 - Fall 2018 Hypothesis Testing Florian - - PowerPoint PPT Presentation

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Nov 02, 2022 45 likes •99 views

Political Science 209 - Fall 2018 Hypothesis Testing Florian Hollenbach 30th November 2018 Hypothesis Testing Goal: Try to determine whether result is due to chance or not Method: Proof by contradiction We try to reject the null

SLIDE 1

Political Science 209 - Fall 2018

Hypothesis Testing

Florian Hollenbach 30th November 2018

SLIDE 2

Hypothesis Testing

Goal: Try to determine whether result is due to chance or not Method: “Proof” by contradiction We try to reject the null hypothesis

Florian Hollenbach 1

SLIDE 3

Hypothesis Testing

Generally we have two hypotheses: 1.H0 Null hypothesis: no relationship 2.H1 Alternative hypothesis: complement to null hypothesis: expected relationship

Florian Hollenbach 2

SLIDE 4

Hypothesis Testing

We can never prove a hypothesis to be true or reject a hypothesis with certainty Instead, we may fail to reject the null We use data and statistical test to infer whether we can reject or fail to reject the null

Florian Hollenbach 3

SLIDE 5

Political Science 209 - Fall 2018

Hypothesis Testing

Florian Hollenbach 30th November 2018

Hypothesis Testing

Goal: Try to determine whether result is due to chance or not Method: “Proof” by contradiction We try to reject the null hypothesis

Florian Hollenbach 1

Hypothesis Testing

Generally we have two hypotheses: 1.H0 Null hypothesis: no relationship 2.H1 Alternative hypothesis: complement to null hypothesis: expected relationship

Florian Hollenbach 2

Hypothesis Testing

We can never prove a hypothesis to be true or reject a hypothesis with certainty Instead, we may fail to reject the null We use data and statistical test to infer whether we can reject or fail to reject the null

Florian Hollenbach 3

Hypothesis Testing

Florian Hollenbach 4