The amount of salt in a bag of potato chips is normally distributed with a mean of 1.2 g. You sample 64 bags and the mean is 1.4 g. If the probability that the mean amount of salt for a sample of 64 bags would be this extreme is 0.0548, what is the standard deviation of the parent distribution?

Question 14 options:

0.125 g

1.125 g

1.0 g

0.015625 g