inferential tests

how do you calculate the man whitney u test?

1-rank data for both groups

2-find total rank individually

3-apply to the formula

4- chose the smallest value

how do you calculate spearmans rank test?

1-rank both sets of data seperately

2-difference between ranks for each ppt

3- square the difference

4-apply to formula

how to do chi squared test?

1. Row Total x Column Total of each section then divide by the overall total all to find the expected value of each box

2. Take ((Observed - expected) / (expected))^2 for each box and then add them all up to get the calculated value

3. To find the critical value, find the calculate the degree of freedom (df) by multiplying (rows - 1) and (columns - 1). A table will be given and we either look at the one/two tailed test 0.05. It is significant if it is greater than 3.84 and we can reject the null hypothesis

how to do the binomial sign

calculate positive and negative signs fpr data

2- find less frequent sign

3- compare with critical value

how to calculate wilcoxon?

1- calculate difference between 2 scores

2- rank the differences

3-add up ranks of positives and negatives seperately

4-pick the smallest