In one marketing research, the research team did a survey about the brand choice, they asked the

question "will your next pizza be a Domino`s", the results showed 90% say "yes, my next pizza will

be a Domino`s" and 10% say "no, my next pizza will not be a Domino`s". Assume the acceptable

margin of sample error is 3% and level of confidence is 95%. Calculate the sample size.