please explain how you got the standard deviation and z score.

New Tab Untitled document According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes in Syria in response to reports of the use of chemical weapons by Bashar al-Assad's government (the Syrian government). A sample of 50 Americans are surveyed. Let p be the sample proportion of Americans who approve the U.S. missile strikes. 1. What is the population proportion? decimal form) 2. What is the sample size? 3. Can the normal approximation be used with this distribution? 4. What is the mean of the sampling proportion? 5. What is the standard deviation sampling proportion? (Round to 4 decimal places.) 6. What is the probability that no more than 25 Americans of the 50 in the survey approve of the missile strikes? . What is p? . What is the z-score? Round to the nearest hundredth.) . What is the requested probability? P(p = 0.5)- 7. What is the probability that more than 30 of the 50 Americans in the survey approved of the missile strikes? . What is p? . What is the z-score? (Round to the nearest hundredth.) . What is the requested probability? P(p : 0,6)- M