Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. facebook a study showed that two years ago the mea

Facebook A study showed that two years ago the mean time spent per visit to...

50.1K

Verified Solution

Question

Statistics

image

Facebook A study showed that two years ago the mean time spent per visit to Facebook was 20 8 minutes Assume the standard deviation is a 8 0 minutes Suppose that a simple random sample of 105 visits was selected this year and has a sample mean of x 21 8 minutes A social scientist is interested to know whether the mean time of Facebook visits has changed Use the a 0 01 level of significance and the P value method with the TI 84 calculator a State the appropriate null and alternate hypotheses b Compute the P value c State a conclusion Use the a 0 01 level of significance Part 0 4 Part 1 of 4 a State the appropriate null and alternate hypotheses Ho H 0 0 O 0 0 8 E

Answer & Explanation Solved by verified expert
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