試題詳解

3). Referring to Table 2, at a significance level of 1%,
(A) there is insufficient evidence to conclude that the mean number of customers bumped by the 4 packages are not all the same.
(B) there is insufficient evidence to conclude that the mean number of customers bumped by the 4 packages are all the same.
(C) there is sufficient evidence to conclude that the mean number of customers bumped by the 4 packages are not all the same.
(D) there is sufficient evidence to conclude that the mean number of customers bumped by the 4 packages are all the same.