(a) Dean of UTAS-Ibra wishes to estimate the mean age of all students currently enrolled. In a random sample of 20 stude

Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
Post Reply
answerhappygod
Site Admin
Posts: 899603
Joined: Mon Aug 02, 2021 8:13 am

(a) Dean of UTAS-Ibra wishes to estimate the mean age of all students currently enrolled. In a random sample of 20 stude

Post by answerhappygod »

A Dean Of Utas Ibra Wishes To Estimate The Mean Age Of All Students Currently Enrolled In A Random Sample Of 20 Stude 1
A Dean Of Utas Ibra Wishes To Estimate The Mean Age Of All Students Currently Enrolled In A Random Sample Of 20 Stude 1 (51.46 KiB) Viewed 85 times
(a) Dean of UTAS-Ibra wishes to estimate the mean age of all students currently enrolled. In a random sample of 20 students, the mean age is found to be 21 years. From past studies, the standard deviation is known to be 1.5 years. Construct a 95% confidence interval of the population mean age. 2.5 Marks (b) For UTAS-Ibra students using library services, the main librarian claims that 67% borrow books. Dean of UTAS-Ibra feels that this is not true so she randomly selects 100 borrowers and finds that 82 borrowed books. Can she show that the main librarian claim is incorrect? Use a = 0.05. 2.5 Marks
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
Top
Post Reply

Return to “Archived Questions & Answers”