1. State the null hypothesis in symbolic form 2. State the alternative hypothesis3. What is the critical value (zc Table)4. Compute the test statistic .5. State the decision and conclusion in one sentence

Use the following information for Q1 to Q5 A large corporation sends many of its first-level managers to an off-site supervisory skills course. Four different management development centers offer this course, and the corporation wants to determine whether they differ in the quality of training provided. A sample of 20 employees who attended these programs is chosen and the employees were ranked in terms of supervisory skills. The results are as follows. (Use 5% level of significance) Course Supervisory Skills Rank { A 3 14 1O 12 13 B 2 7 1 5 11 C 19 16 9 18 17 D 20 4 15 6 8 1.. State the null hypothesis in symbolic form