# Five different laboratories participated in an interlaboratory study involving determinations of the iron level in water samples. The results below

This problem has been solved!

Do you need an answer to a question different from the above? Ask your question!

## Question:

Five different laboratories participated in an interlaboratory 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

(a) State the appropriate hypotheses.

(b) Do the laboratories differ at the 95% confidence level? At the 99% confidence level (Fcrit = 5.99)? At the 99.9% confidence level (Fcrit = 11.28)?

(c) Which laboratories are different from each other at the 95% confidence level?

**Related Book For**

## Introduction to Probability and Statistics

ISBN: 978-1133103752

14th edition

Authors: William Mendenhall, Robert Beaver, Barbara Beaver

**View Solution**

Create a free account to access the answer

**Cannot find your solution?**

Post a FREE question now and get an answer within minutes.
* Average response time.