This formula was used to calculate the sample sizes in Tables 2 and 3 and is shown below. First turn your confidence level into a Z-score. The sample size for the chosen parameters should be 16641 which is a very large sample.
For 95 of the confidence value the Z value will be 196 per the normal table.
N Population Size Calculate this with the formula below z Z-score. Thus 186 sample size arrived at should be corrected adjusted for finite population. Its equation can be derived by using population size the critical value of the normal distribution sample proportion and margin of error. If you were taking a random sample of people across the US then your population size would be about 317 million.