Answer to Question #6049 in Statistics and Probability for Hassan

Question

anyone solve this question plz!

Q. Mr. Christ, the receiving clerk for a chemical-products distributor, is faced with the continuing problem of broken glassware, including test tubes, petri dishes, and flasks. Christ has determined some additional shipping precautions that can be undertaken to prevent breakage, and he has asked the purchasing Director to inform the suppliers of the new measures. Data for 8 suppliers are given below in terms of average number of broken items per shipment. Do the data indicate, at =0.05, that the new measures have lowered the average number of broken items?
Supplier: 1 2 3 4 5 6 7 8
Before: 16 12 18 7 14 19 6 17
After: 14 13 12 6 9 15 8 15