"0" II- Solve the following using the 5 steps solution: (Hypotheses, Level of Significance, Test Statistic, Decision, Conclusion) 1. Suppose you are an executive in charge in hiring for an advertising corporation. A test salesperson stops by your office with new selection test. This salesperson alleges that the 'new and improved" selection test measures "advertising aptitude" and is an excellent predictor of job performance in any advertising corporation. The salesperson has collected data on the test, and luckily for, is willing to let you analyze the numbers. The salesperson has to measures a variety of other variables on 15 current advertising employees (Job incumbents), such that the data base includes X = gender of the employee (male female) X = peer evaluation of the employee's initial interview (good and bad) X advertising aptitude test score for each employee (maximum score of 25) Y= performance of the employee (supervisor rating maximum score of 30) The data are shown below: Employee 1 2 345 5 6 8 9 X Male Female Male Male Female Male Male Female Male Male Female X Good Good Good Bad Bad Good Bad Bad Good Good Good X3 24 18 Good Good Bad Bad 21 7 14 20 8 13 15 19 25 23 18 12 17 Y 20 29 17 8 25 26 7 12 8 22 23 10 11 12 Female Male 13 14 Female 5 15 Female 13 a. Calculate the Pearson's correlation coefficient (r) between test scores and performance rating. b. Test its significance at 0.05 level C. Find performance rating If the test score obtained is 22. d. Calculate the phi-coefficient between gender and peer evaluation. e. Calculate the spearman rho between aptitude test scores and performance. USE RELIG 27 10