Suppose that Amanda raises chickens whose eggs have a mean weight of 57 grams and a
standard deviation of 6 grams. Her friend Bernardo also raises chickens, and their eggs have a
mean weight of 54 grams and a standard deviation of 8 grams.
They decide to have a contest where they'll each randomly select 60 of their eggs, calculate the
mean weight, and look at the difference between their sample means (A - TB).
What are the mean and standard deviation (in grams) of the sampling distribution of TA - TB?
