Interferential testing

Question 1

What is a sign test?

Answer 1

A statistical (interferential) test to determine the significance of related items of data

Question 2

What are the steps for the sign test?

Answer 2

1. State a hypothesis
2. Determine where it is 1 tailed or 2 tailed
3. Record each pair of data, working out the difference.
4. Record a plus for a positive difference and a minus for a negative difference.
5. Add up all the pluses and the minuses and select the smaller value. (S Value)