hello this is my question for today,

also please verify normality if possible

thank you

'16 4. Swix F4 Universal and Zum Rub-on All Temperature are two types of wax used to for downhill skis. Both Swix and Zum claim that their product provides the best glide for downhill skis. A random sample of skis were selected to receive the Swix wax and another sample of skis were selected and the Zum was was applied. Alter the wax is applied, each ski glides along a controlled track and the total length of the glide is recorded. The data is shown below. Determine if the data shows that there is no difference in the average distances of the glides for the two brands of ski wax. Assume that both sets of data are normally distributed and of as of. Use the rejection region method and let 052.05 . Distances are all measured in meters. Distance for Skis with Swix F4 Universa Wax 3.56 3.22 3.34 3.25 3.7? 4.15 4.06 4.45 4.1? 3.98 ' 5.02 4.18 ' 5.2 I365 3.85 ' ' l | Distance for Skis with Zum Rubon All Temperature Wax 3.?5 3.55 4.89 4.96 5.21 5.06 4.88 4.35 3.99 3.8? ' 4.65 4.24 ' 5.3 4.88 4.28 ' 5.3 3.98 ' l l