|
Yes, it does - sort of. The term 'significant' by convention means that 5% of the values sampled fall outside of an acceptable range of deviation (1.95 x s.d.) in a normal distribution. Whether the 0.8 mpg is due to a modification or the randomness of the samples is another question. Since the difference of the two averages is barely half of the s.d. of each sample, most samples fall within a range common to both A and B.
|