Court is now in session! The Null Hypothesis (H₀) is presumed innocent , that there’s no effect or no difference. The Alternative Hypothesis (H₁) accuses it of being false that there is an effect!
H0=innocent
H1=guilty
Skaidrė: 2
Before we begin, we must decide how strict this court is!Today’s significance level (α) is 0.05 meaning we only convict if the evidence is really strong
H0=innocent
H1=guilty
Skaidrė: 3
z=-2.3
Here’s our key piece of evidence ,it measures how far our sample is from the population’s claim
H1=guilty
H0=innocent
Skaidrė: 4
We crunched the numbers and got a p-value the probability that this evidence could happen if the null were true.
H1=guilty
p=0.03
H0=innocent
Skaidrė: 5
Now I will give the jury time to discuss.If p α, the evidence is strong=we reject the null and declare it guilty!If p α, the evidence is weak we retain the null and say not guilty!
H0=innocent
H1=guilty
Skaidrė: 6
The jury has made a decision, based on our evidence, we reject the null hypothesis. There is significant evidence that the claim is false.
H1
H0=rejected!
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