Shailee says there are a total of 30 hundred thousands in the number 3,000,000. is shailee correct?
a. yes, shailee is correct.
b. no, shailee is not correct. there are exactly 30 hundreds in 3,000,000.
c. no, shailee is not correct. there are exactly 300 hundred thousands in 3,000,000.
d. no, shailee is not correct. there are exactly 300 thousands in 3,000,000

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