A survey of 25 randomly selected customers found the ages shown (in years). The mean is 32.20 years and the standard dev

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 survey of 25 randomly selected customers found the ages shown (in years). The mean is 32.20 years and the standard dev

Post by answerhappygod »

A Survey Of 25 Randomly Selected Customers Found The Ages Shown In Years The Mean Is 32 20 Years And The Standard Dev 1
A Survey Of 25 Randomly Selected Customers Found The Ages Shown In Years The Mean Is 32 20 Years And The Standard Dev 1 (17.67 KiB) Viewed 32 times
A survey of 25 randomly selected customers found the ages shown (in years). The mean is 32.20 years and the standard deviation is 9.94 years. a) Construct a 90% confidence interval for the mean age of all customers, assuming that the assumptions and conditions for the confidence interval have been met. b) How large is the margin of error? a) What is the confidence interval? (Round to two decimal places as needed.) b) What is the margin of error? The margin of error is (Round to two decimal places as needed.) C 16 34 43 21 28 40 47 35 32 45 49 22 39 25 23 30 30 47 31 34 37 11 24 26 36
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”