According to the May 16,2017 report by Pew Research, 45% of US adults say solar energy is very effective in minimizing air pollution. A sample of 160 U.S adults are surveyed. Let pˆp^ be the sample proportion of Americans who believe solar energy is very effective in minimizing air pollution. What is the mean of the sampling proportion? Answer What is the standard deviation of the sampling proportion? Answer (Round to 4th decimal place) What is the probability that no more than 76 U.S adults of the 160 surveyed believe solar energy is very effective in minimizing air pollution? What is pˆp^? Answer (decimal form) What is the z-score? Answer (Round to the hundredths place) What is the probability that no more than 76 U.S. adults of the 160 surveyed believe solar energy is very effective in minimizing air pollution? Answer (decimal form)

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Q: lescribes the numb

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.