Interpreting the Results of Mann Whitney U

• How many participants were in group A?

  10 participants
• How many participants were in group B?

  8 participants
• What was the occupation of group A?

  Teachers
• What was the occupation of group B?

  Unemployed individuals
• What type of test did the participants take?

  A personality test
• How were participants asked to rate their happiness?

  On scales of 1-10
• What was the nature of the hypothesis in the study?

  Non-directional (2 tailed)
• What was the calculated value of U?

  10.5
• How many participants were in group A (Na)?

  10 (P's)
• How many participants were in group B (Nb)?

  8 (P's)
• What is the critical value of U for a two-tailed test when P≤0.05?

  17
• What does it mean if the calculated value of U is less than or equal to the critical value?

  Findings are significant at the 5% level
• What conclusion can be drawn if the null hypothesis is rejected?

  There is a significant difference between groups
• What does accepting the alternative hypothesis imply in this study?

  There is a significant difference between group A and B