In order to determine the proportion of people who favor imposing sales tax for all Internet purchases, the minimum sample size needed for a precision level of 5 percent and a confidence level of 95 percent, is:

In order to determine the proportion of people who favor imposing sales tax for all Internet purchases, the minimum sample size needed for a precision level of 5 percent and a confidence level of 95 percent, is: 







A. 666.

B. 272.

C. 384.

D. 196.

E. 100.











Answer: C