bootstrap/ non parametric alternatives

Question 1

What are Bootstrap methods used for?

Answer 1

They are used to describe Non-Normal data

Question 2

Give an example of a Non-parametric test

Answer 2

The Mann-Whitney Test

Question 3

Describe how a Bootstrap test is carried out

Answer 3

• Data is listed from smallest to largest and then assigned into Ranks
• Means for each of the ranks can be calculated
• Variance across ranks can also be calculated
• This can then be used to approximate a normal distribution

Question 4

What are the hypothesises of a Bootstrap test?

Answer 4

Ho: No difference between ranks
H1: There is a difference between ranks