Independent random samples were selected from two quantitative populations, with sample sizes, means, and variances given below. Population 1 Sample Size 38 45 Sample Mean 9.6 7.3 Sample Variance...

Extracted text: Independent random samples were selected from two quantitative populations, with sample sizes, means, and variances given below. Population 1 Sample Size 38 45 Sample Mean 9.6 7.3 Sample Variance 10.83 16.49 State the null and alternative hypotheses used to test for a difference in the two population means. О н: (и, - н2) + 0 versus Hа: (и, - и2) %3D 0 О на: (и, - и2) %3D 0 versus H,: (и, — и2) > о О на: (и, - и2) %3D 0 versus Hа: (и, — и2) + 0 О н: (и, — и,) %3D 0 versus H,: (и, — и) < 0="" о="" hо:="" (и1="" —="" н2)=""><0 versus="" hа:="" (и1="" —="" и2)=""> о Calculate the necessary test statistic. (Round your answer to two decimal places.) z = 2.77 Calculate the rejection region with a = 0.01. (Round your answers to two decimal places. If the test is one-tailed, enter NONE for the unused region.) z > 2.77 z < 2.77="" draw="" the="" appropriate="" conclusion.="" o="" h,="" is="" not="" rejected.="" there="" is="" insufficient="" evidence="" to="" indicate="" a="" difference="" in="" mean.="" ho="" is="" not="" rejected.="" there="" is="" sufficient="" evidence="" to="" indicate="" a="" difference="" in="" mean.="" o="" ho="" is="" rejected.="" there="" is="" insufficient="" evidence="" to="" indicate="" a="" difference="" in="" mean.="" o="" ho="" is="" rejected.="" there="" is="" sufficient="" evidence="" to="" indicate="" a="" difference="" in="">