#11 on the worksheet

A therapist measures the relationship between a patient's expectations that therapy will be successful and the actual success of the therapy. The following table shows the results of this hypothetical study using a sample of 50 clients. Therapy Successful Yes No Totals Client Yes 22 8 30 expects No 4 16 20 success Totals 26 24 (a) Compute the phi correlation coefficient. (Round your answer to three decimal places.) (b) Using a two-tailed test at a 0.05 level of significance, state the decision to retain or reject the null hypothesis. Hint: You must first convert r to x2. Retain the null hypothesis. Reject the null hypothesis