During 2011 a company implemented a number of policies aimed at reducing the ages of its cus tomers\" accounts. In order to assess the effectiveness of these measures: the company randomlyr selects 10 customer accounts. The average age of each account is determined for the years 2010 and 2011. These data are given below. Assuming that the population of paired differences between the average ages in 2011 and 2010 is normally distributed, could we say that the mean average account age is reduced? Account Average Account Age in 2011 Average Account Age in 2010 1 27 35 2 19 24 3 40 47 4 30 28 5 33 41 25 33 7 31 35 8 29 51 9 15 18 10 21 28