Answer
The mean charitable contribution per household among households with income of 1 million or more in the United States has been changed from the 2005 level of $\$17,072$.
Work Step by Step
If we reject the Null hypothesis, this implies that we have sufficient evidence that the mean charitable contribution per household among households with an income of 1 million or more in the United States has been changed from the 2005 level of $\$17,072$.