SOLUTION: A market research survey in which 60 consumers were contacted states that 65% of all consumers of a certain product were motivated by the product's advertising. Find the confidence
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Question 1195927: A market research survey in which 60 consumers were contacted states that 65% of all consumers of a certain product were motivated by the product's advertising. Find the confidence limits for the proportion of consumers motivated by advertising in the population, given a confidence level equal to 0.95 Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! 95% half-interval for a proportion is z*sqrt(p(1-p)/n)
=1.96 sqrt (0.65*0.35/60)
=0.1207
the interval is (0.53, 0.77)
