A randomized study compared the effectiveness of two different flea collars for dogs. The dogs in the treatment group using flea collar A had a mean of 2.8 fleas. The dogs in the treatment group using flea collar be had a mean of 3.3 fleas. To determine if the results are significant data or rerandomized in the differences of the means are shown in the dot plot. What is the best conclusion to make based on the data?