A random sample of n = 16 one-kilogram sugar packets of brand A have weights with a sample mean  = 1.053 kg and a sample standard deviation sx = 0.058 kg. In addition, a random sample of m = 16 one-kilogram sugar packets of brand B have weights with a sample mean  = 1.071 kg and a sample standard deviation sy = 0.062 kg. Is it safe to conclude that brand B sugar packets weigh slightly more on average than brand A sugar packets?