In a 2018 poll conducted by SurveyMonkey, they randomly surveyed 368 students from two- and four-year institutions...

50.1K

Verified Solution

Question

Statistics

In a 2018 poll conducted by SurveyMonkey, they randomly surveyed368 students
from two- and four-year institutions across the U.S. Accordingto the survey, 58% purchased at
least one of their textbooks on Amazon. What proportion of allU.S. college students purchased
at least one of their textbooks on Amazon?
a. Use StatCrunch to find a 95% confidence interval:_________________
b. Interpret your confidence interval in words.
c. True or False: A 90% confidence interval would be wider thana 95% confidence interval.
d. If the true proportion of all U.S. college students whopurchased at least one of their
textbooks on Amazon was 62%, does our confidence intervalsupport or refute it?

Answer & Explanation Solved by verified expert

4.5 Ratings (894 Votes)

using exceladdinphstatconfidence interval we ahve Confidence Interval Estimate for the Proportion Data Sample Size 368 Number of Successes 213 Confidence Level 95 See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member