In a local community, assume ages are normally distributed. To estimate the average age of people in the community, a sample of 25 people are taken. The mean of these sample values is 52. The upper bound of the 90% confidence interval for the mean age is 60.4. What is the lower bound for the 90% confidence interval? Round your answer to one decimal place.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 11PPS
icon
Related questions
Question
In a local community, assume ages are normally distributed. To estimate the average age of people in the community, a sample of
25 people are taken. The mean of these sample values is 52. The upper bound of the 90 % confidence interval for the mean age
is 60.4. What is the lower bound for the 90% confidence interval? Round your answer to one decimal place.
Transcribed Image Text:In a local community, assume ages are normally distributed. To estimate the average age of people in the community, a sample of 25 people are taken. The mean of these sample values is 52. The upper bound of the 90 % confidence interval for the mean age is 60.4. What is the lower bound for the 90% confidence interval? Round your answer to one decimal place.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL