7.1 Hypothesis testing

Question 1

What is a hypothesis?

Answer 1

» Statement made about the value of a population parameter

Question 2

What is the test statistic?

Answer 2

» The result of the experiment or the statistic that is calculated from the sample is called the test statistic

Question 3

What are the 2 hypothesis you need to form?

Answer 3

» Null Hypothesis
» Alternative Hypothesis

Question 4

What is the null hypothesis?

Answer 4

» H(o) - hypothesis that you assume to be correct

Question 5

What is the alternative hypothesis?

Answer 5

» H(1) - Tells you about the parameter if your assumption is shown to be wrong

Question 6

How is the test statistic calculated?

Answer 6

» Calculated from the sample or experiment

Question 7

How do you write the null hypothesis down?

Answer 7

» H(o) : p =….

Question 8

What are one tailed tests?

Answer 8

» Hypothesis test with alternative hypothesis in the form H(1):p <… and H(1) : p>..

Question 9

What are two tailed tests?

Answer 9

» Alternative hypothesis in the form H(1): p != …

Question 10

What happens if the likelihood is less then the significance value?

Answer 10

» Reject - as it is very unlikely

Question 11

What happens if the likelihood is more than the signifcance value?

Answer 11

» Not enough evidence to reject the null hypothesis

Question 12

What are some typical values of the null hypothesis?

Answer 12

» 10%
» 5%
» 1%