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A beer company wants to determine whether a different marketing strategy is needed for their national market as compared with their marketing strategy for international
A beer company wants to determine whether a different marketing strategy is needed for their national market as compared with their marketing strategy for international market. A sample of 400 national beer drinkers 60% liked the beer. A sample of 500 international beer drinkers liked the beer. Construct 80% confidance interval for the difference between the population proportions. (p1 - p2)
What is the lower limit of practical 2?
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