stats

what are the decisions when choosing a stats test

1. is it a test or a correlation

2. unrelated data or related data

3. what level of measurement is it

what are the steps for a sign test

1. state hypothesis and decide if it is one or two tailed and if it is directional or non-directional

2. record data and work of sign of difference

3. find calculated value of S. add up all pluses and add up all minuses and select smaller value

4. find critical value. N = total number of scores. decide on one or two tailed test. unless told otherwise probability is 0.05. use critical value table

5. is the result significant? if the calculated value is equal to or less than the critical value the the answer is significant

what is the rule of R in significance

if there is an R in the name then equal to or more than gives a significant result

what is the cue for stats test table

carrots should come mashed with swede under roast potatoes