Symbols: P=pop. proportions, P hat= sample proportion, u=population mean, X bar=sample mean, Omega= STD DEV of population, s=STD DEV of sample, u(x bar)= mean of diestribution of sample mean, omega(x bar)= STD DEV of diestribution of sample mean, u(p hat)=mean of sampling distr of sample proportion, omega(p hat)=STD DEV of sampling distribution of sample proportion.