Question
1..A survey of adults in a certain country found the 59% believed that freedom of news organizations to criticize political leaders is essential to maintaining
1..A survey of adults in a certain country found the
59%
believed that freedom of news organizations to criticize political leaders is essential to maintaining a strong democracy. Assume the sample size was 200.
a. How many people in the sample felt this way?The number of people in the sample who believed that freedom of news organizations to criticize political leaders is essential to maintaining a strong democracy is
enter your response here.
(Round to the nearest integer as needed.)
2...Consider a study conducted in
2018,
where researchers wanted to estimate the percentage of middle school girls who planned to major in a STEM field.
a. If a
95%
confidence level is used, how many people should be included in the survey if the researchers wanted to have a margin of error of
20%?
There should be
enter your response here
people included in the survey.(Round up to the nearest person as needed.)
3...According to a poll,
654
out of
1032
randomly selected smokers polled believed they are discriminated against in public life or in employment because of their smoking.
a. What percentage of the smokers polled believed they are discriminated against because of their smoking?
b. Check the conditions to determine whether the CLT can be used to find a confidence interval.
c. Find a 95% confidence interval for the population proportion of smokers who believe they are discriminated against because of their smoking.
d. Can this confidence interval be used to conclude that the majority of smokers believe they are discriminated against because of their smoking? Why or why not?
Part 1
a. The percentage of those taking the poll believed they are discriminated against because of their smoking is
enter your response here%.
(Round to one decimal place as needed.)
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