AS Stats Chapter 7: Hypothesis Testing

8 flashcards · Mathematics · by TheoTyson

1. What is the null hypothesis?

   H0\text{H}_0H0​ , the hypothesis you assume to be correct.

2. What is the alternative hypothesis?

   H1\text{H}_1H1​ , the outcome that is true if the null hypothesis is incorrect.

3. What is a one-tailed test?

   Hypothesis tests that are defined as less than or greater than H0\text{H}_0H0​ , in the form H1:p<...\text{H}_1 : p < ...H1​:p<... or ..."> H1:p>...\text{H}_1 : p > ...H1​:p>...

4. What is a two-tailed test?

   Hypothesis tests that can be either less than or greater than H0\text{H}_0H0​ , in the form H1:p≠...\text{H}_1 : p \neq ...H1​:p=...

5. What is a critical region?

   The region in which if the value falls, you would reject the null hypothesis.

6. What is a critical value?

   The first value to fall inside the critical region that causes you to reject the null hypothesis.

7. What is the actual significance of a hypothesis test?

   The probability of incorrectly rejecting the null hypothesis.

8. How many critical regions does a two tailed test have?

   Two critical regions, one at either side, which means that the significance needs to be halved for each side.