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3. Can the normal approximation be used with this distribution? Yes, the population distribution is normally distributed. X 4. What is the mean of the sampling proportion? 0.68 5. What is the standard deviation of the sampling proportion? 0.0301 (Round to 4th decimal place) 6. What is the probability that no more than 156 U.S adults of the 240 surveyed believe solar energy is very effective in minimizing air pollution? What is p? 0.65 (decimal form) What is the z-score? 1 X (Round to the hundredths place)

3. Can the normal approximation be used with this distribution? Yes, the population distribution is normally distributed. X 4. What is the mean of the sampling proportion? 0.68 5. What is the standard deviation of the sampling proportion? 0.0301 (Round to 4th decimal place) 6. What is the probability that no more than 156 U.S adults of the 240 surveyed believe solar energy is very effective in minimizing air pollution? What is p? 0.65 (decimal form) What is the z-score? 1 X (Round to the hundredths place)

College Algebra
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 14T: An unbalanced coin is weighted so that the probability of heads is 0.55. The coin is tossed ten...
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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. Let > 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 4. What is the mean of the sampling proportion? 0.68 5. What is the standard deviation of the sampling proportion? 0.0301 (Round to 4th decimal place) 6. What is the probability that no more than 156 U.S adults of the 240 surveyed believe solar energy is very effective in minimizing air pollution? What is ? 0.65 (decimal form) What is the z-score? 1 X (Round to the hundredths place) What is the probability that no more than 156 U.S. adults of the 240 surveyed believe solar energy is very effective in minimizing air pollution? 0.1587 (decimal form)
Transcribed Image Text: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. Let > 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 4. What is the mean of the sampling proportion? 0.68 5. What is the standard deviation of the sampling proportion? 0.0301 (Round to 4th decimal place) 6. What is the probability that no more than 156 U.S adults of the 240 surveyed believe solar energy is very effective in minimizing air pollution? What is ? 0.65 (decimal form) What is the z-score? 1 X (Round to the hundredths place) What is the probability that no more than 156 U.S. adults of the 240 surveyed believe solar energy is very effective in minimizing air pollution? 0.1587 (decimal form)
Binomial Distribution Use technology (calculator, Microsoft Excel, or Google Sheets) to find the following binomial probabilities. Round to the nearest thousandth. According to the Center for Disease Control, 15% of US adults are estimated to have chronic kidney disease. A random sample of 150 U.S adults are selected. What is the probability that: 1. Exactly 35 have chronic kidney disease? P(r ✔ 35) = 0.002 15) = 2. No more than 15 have chronic kidney disease? P(r 0.049 = 0.059 3. Thirty or more have chronic kidney disease? P(r > ♦ 30)
Transcribed Image Text:Binomial Distribution Use technology (calculator, Microsoft Excel, or Google Sheets) to find the following binomial probabilities. Round to the nearest thousandth. According to the Center for Disease Control, 15% of US adults are estimated to have chronic kidney disease. A random sample of 150 U.S adults are selected. What is the probability that: 1. Exactly 35 have chronic kidney disease? P(r ✔ 35) = 0.002 15) = 2. No more than 15 have chronic kidney disease? P(r 0.049 = 0.059 3. Thirty or more have chronic kidney disease? P(r > ♦ 30)
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