Use the given probability value to determine whether the sample results could easily occur by chance, then form a conclusion.

A study of dog food preferences of two brands (A and B) for 40 dogs had the following results: 27 chose Brand A while 13 chose Brand B.The probability of getting at least 27 dogs that chose brand A over B by chance is 0.0403.Is there sufficient evidence that dogs prefer Brand A over Brand B or did these results happen by chance?Explain.