A recent study investigated tractor skidding distances along a road in a forest. The skidding distances(in meters) were measured at 20 randomly selected road sites. The data are given in the accompanying table. A logger working on the road claims that the mean skidding distance is at least 425 meters. Is there sufficient evidence to refute thisclaim? Use =0.050.05.

A.Calculate the value of the test statistic

B.Calculate thep-value

C.Make the appropriate conclusion. Choose the correct answer below.

a)Do no reject H0. There is sufficient evidence at the =0.05level of significance to conclude that the true mean skidding distance is not at least 425 meters.

b)Reject H0. There is insufficient evidence at the =0.05 level of significance to conclude that the true mean skidding distance is not at least 425 meters.

c)Reject H0. There is sufficient evidence at the =0.05level of significance to conclude that the true mean skidding distance is not at least 425 meters

d)Donotreject H0. There is insufficient evidence at the =0.05 level of significance to conclude that the true mean skidding distance is not at least 425meters.