A snack manufacturer produces child and adult versions of trail mix. The company claims that the child mix contains 10% raisins, while the adult mix contains 25% raisins. Assume that the claim is true. Suppose we take a random sample of 100 pieces of the child mix and a separate sample of 200 pieces of the adult mix. Let pc
and be the sample proportions of raisins from the
child and adult mixes, respectively.
σₚ₁₋ₚ₂=√p₁(1-p₁)/n₁ + p₂(1-p₂)/n₂
What is the standard deviation of the sampling distribution of-Pᴄ-Pᴀ?