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According to a poll on customer behavior, 30% of people say they will only consider cars...

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. 24.4% and 35.6%

b. 23.3% and 36.7%

c. 27.1% and 32.9%

d. 25.6% and 34.4%

Math   Statistics-And-Probability   
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