Aright rectangular prism has a length of 9 inches, a width of 10 inches, and a height of 11 inches. if a plane slices the prism in half, parallel to its smallest face, which of the following describes the shape of the two-dimensional cross-section? a. a 10-inch by 11-inch rectangle b. a 10-inch by 10-inch square c. a 9-inch by 10-inch rectangle d. a 9-inch by 9-inch square

The investigating team suspected that there were differences in the cost of repairing cars in workshop i and workshop ii. the investigating team suspected that the costs raised by workshop i were greater than workshop ii. for that they tested the repair of 15 cars in each workshop to see the cost of repairs. the decision of the right hypothesis to prove the suspicion above is a. h0 : μ1- μ2­ = 0; ha : μ1- μ2­ ≠ 0 b. h0 : μ1- μ2 ≥ 0; ha : μ1- μ2 < 0 c. h0 : μd ≥ 0; ha : μd < 0 with μd = μ2- μ1 d. h0 : μd = 0; ha : μd ≠ 0 with μd = μ2- μ1 e. h0 : μ1- μ2 = 0; ha : μ1- μ2 ≥ 0