Plz and question 6

ure.com/courses/47971/quizzes/134962/take Shipping - Miller. St. John's Univers. St. John's Univers.. Dashboard Thirteen Theories... My Shelf | Brytew. Calculate the pooled estimate of the variance (what our textbook calls s') for use with the t- distribution when comparing the means of two populations whose variances are assumed to be equal.. You are given that n1 = 7, n2 = 9, 512 = 10, 572 = 12. 11.143 O 11.5 O 1.375 10.25 D Question 6 1 pts In Question 5, if the confidence level were given to be 90%, what t value should be used to finish setting up the confidence interval? 1.337 1.746 O 1.345 1.761