Normal Approximation According to the May 16,2017 report by Pew Research, 68% of US adults say solar energy is very effective in minimizing air pollution. A sample of 240 U.S adults are surveyed. Letp be the sample proportion of Americans who believe solar energy is very effective in minimizing air pollution. 1. What is the population proportion? 0.68 (decimal form) 2. What is the sample size? 240 3. Can the normal approximation be used with this distribution? Yes, the population distribution is normally distributed. + x

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