6. Five different laboratories participated in an inter-laboratory study involving determinations of the iron level in water samples. The results below are replicate determinations of Fe in ppm for laboratories A through E. Result No. 1 2 3 Lab A 10.3 11.4 9.8 Lab B 9.5 9.9 9.6 Lab C Lab D 10.1 8.6 10.0 9.3 10.4 9.2 Lab E 10.6 10.5 11.1 (a) State the appropriate hypotheses. (b) Do the laboratories differ at the 95% confidence level? At the 99% confidence level (Ferit 5 5.99)? At the 99.9% confidence level (Fcrit 5 11.28)? (c) Which laboratories are different from each other at the 95% confidence level?
6. Five different laboratories participated in an inter-laboratory study involving determinations of the iron level in water samples. The results below are replicate determinations of Fe in ppm for laboratories A through E. Result No. 1 2 3 Lab A 10.3 11.4 9.8 Lab B 9.5 9.9 9.6 Lab C Lab D 10.1 8.6 10.0 9.3 10.4 9.2 Lab E 10.6 10.5 11.1 (a) State the appropriate hypotheses. (b) Do the laboratories differ at the 95% confidence level? At the 99% confidence level (Ferit 5 5.99)? At the 99.9% confidence level (Fcrit 5 11.28)? (c) Which laboratories are different from each other at the 95% confidence level?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 6 steps with 6 images
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL