6: Hypothesis Testing

Question 1

The probability of rejecting a false null hypothesis

Answer 1

Power of the test

Question 2

The power of a test=

Answer 2

= 1- P(Type II error)

Question 3

Rejecting the null hypothesis when it is true

Answer 3

Type I error

Question 4

Failing to reject the null hypothesis when it is false

Answer 4

Type II error

Question 5

The probability of making a type I error:

Answer 5

The significance level (Alpha)

Question 6

Significance level of 5% means:

Answer 6

There is a 5% chance of rejecting a true null hypothesis

Question 7

The smallest level of significance at which the hypothesis can be rejected:

Answer 7

P-value:
A p-value of 0.02% means that the smallest significance level at which the hypothesis can be rejected is 0.0002

Question 8

Test statistic to test that a population variance is equal to a chosen value:

Answer 8

Chi-square statistic

Question 9

Test statistic to test that two variance are equal:

Answer 9

F-statistic

Variance B/ variance A