Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

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.)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Calculus Early Transcendentals

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

2nd edition

321954428, 321954424, 978-0321947345

More Books

Students also viewed these Mathematics questions

Question

2. Avoid controlling language, should, must, have to.

Answered: 1 week ago