STATE:

PLAN: ? ≡
Level C:
Method used:

SOLVE: check all conditions show all formulas used, with the correct values filled in. Report estimate to 0.001.

CONCLUDE:

a) what sample size n is required to estimate the true proportion of grain facilities that can detect 1% GM soybeans in  shipment to within a margin error of 0.05 with 95% confidencce?