Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. in a study of habits of undergraduate students, a

In a study of habits of undergraduate students, a researcher sampled 53 students and found that...

80.2K

Verified Solution

Question

Statistics

  1. In a study of habits of undergraduate students, a researchersampled 53 students and found that the mean number of classesmissed over the course of a school year was 18. Assume thepopulation standard deviation, σ = 5.7.
    1. (5 points) Calculate the 95% confidence interval for the meannumber of classes missed during the school year by undergraduatestudents.
  1. (2 points) If the researcher had sampled 75 students, would themargin of error be larger or smaller?
  1. (2 points) If the researcher used a 90% confidence levelinstead of 95%, would the margin of error be larger orsmaller?

Answer & Explanation Solved by verified expert
4.5 Ratings (939 Votes)
Solution Given thatPoint estimate sample mean    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

Other questions asked by students