According to a poll on customer behavior, 30% of people say they will only consider cars manufactured in their country when purchasing a new car. Suppose you select a random sample of 180 respondents. The probability is 80% that the sample percentage will be contained within what symmetrical limits of the population percentage?
Select one:
a. 27.1% and 32.9%
b. 25.6% and 34.4%
c. 24.4% and 35.6%
d. 23.3% and 36.7%
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