Manuel2019
17.04.2020 •
Mathematics
Suppose the Cartoon Network conducts a nation-wide survey to assess viewer attitudes toward Superman. Using a simple random sample, they select 400 boys and 300 girls to participate in the study. Forty percent of the boys say that Superman is their favorite character, compared to thirty percent of the girls.
What is the 90% confidence interval for the true difference in attitudes toward Superman?
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Ответ:
742.6 your answer as you tell mark me brainlest