32.We want to compare the average weekly expenditures for food consumption after of families in three regions with approximately the same socio-economic characteristics. socio-economic characteristics. A random sample of families from each region was region was taken and a detailed report on the weekly expenditures for food consumption is A random sample of families in each region was taken and a detailed report on weekly expenditures for food consumption is shown in the table below.

RAPPORT DETAILLE Groupes Nombre d'echantillons Somme Moyenne Variance Region A 912 114.0 100.6 Region B 896 128.0 81.6 Region C 12 1440 120.0 110.8