Question

Question 19 10 pts College athletes have a long-term graduation rate of 67%. During this past year a random sample of 380 college athletes showed that 285 of them graduated. At the 5% level of significance, does this indicate that the population proportion of college athletes who graduate is now greater than 67%? No, the test statistic is not in the rejection region. No, the p-value is much greater than the level of significance. Yes, the test statistic is not in the rejection region. Yes, the p value is much lower than the level of significance None of the above.

Answer 1

solution). alven that, n=380 X = 285 P = x = 285 - 0.75 Po= 670/0=0,67 E-po=1-0.67 20:33 a= 0.05 HoIP = 0.67 Halp =0.67 Test statistic, z = P-po. Toll-po) 0.75 -0.67 10.67 Ch 0.67) 380 z = 3.317 The test statistic is 3.317 This is right -tailed test The p-value is p = 0.0005

Page No. Date p-value = 0.0005 .o.ooos <0.05 P-value La Reject Ho. Conclusion ! It is concluded that the null hypothesis Ho is rejected. There fore, there is enough evidence to claim that the population p is greather than po, at the a=0.05 significance level None of the above option is correct