9.A multinational company wants to statistically verify if there is a link between the age of its management graduates and their knowledge in Management and Human Resources Management. A battery of tests was administered to 400 employees with management degrees to test their theoretical and practical knowledge. The results were then tabulated in a contingency table; the test scores were ranked as follows Excellent Good Fair while the age of the graduates was classified as follows: 25 but under 35 35 but under 45 years of age 45 and over The calculation of the chi-square gives X2 = 38.25. Can we affirm, at the 10% significance level, that the scores obtained according to the indicated classification are independent of the age of the management graduates?

a)Since the calculated chi-square = 38.2558 > the critical chi-square = 14.86. Ho can be rejected. Can we affirm, at the 10% significance level, that the scores obtained according to the indicated classification are dependent on the age of the graduates in management? b)Since the calculated chi-square = 38.2558 > the critical chi-square = 9.488. Ho can be rejected. Can we state, at the 10% significance level, that the scores obtained according to the indicated classification are dependent on the age of the graduates in management? c)Since the calculated chi-square = 38.2558 > the critical chi-square = 13.277. Ho can be rejected. Can we affirm, at the 10% significance level, that the scores obtained according to the indicated classification are dependent on the age of the graduates in management? d)Since the calculated chi-square = 38.2558 > the critical chi-square = 7.779. Ho can be rejected. Can we affirm, at the 10% significance level, that the scores obtained according to the indicated classification are dependent on the age of the graduates in management? e)Since the calculated chi-square = 38.2558 > the critical chi-square = 11.143. Ho can be rejected. Can we affirm, at the 10% significance level, that the scores obtained according to the indicated classification are dependent on the age of the graduates in management?