5 Popular wisdom is that eating pre-sweetened cereal lends toincrease the number of dental cavities in children. A sample of children was ( with parental consent ) entered into a study and followed for several years. Each child was classified as a sweetened -cered lover or a non-sweetened cereal lover . At the end of the study the amount of tooth damage was measured . there is the summary data : sugar Bombed No sugar Samplesize 15 mean 4.41 5.20 standard deviation 5 15 Is there a significant difference between the two groups ? A .| There is a significant difference between the twogroups ct ( 25 ) = - 1.58; p