The concentrations of K* in water were measured with atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES). Four water samples obtained at different cities were used, and each sample was measured one time. The measurements are shown in the table below: Tulare 8.9 ppm 7.0 ppm What is the calculated t-value (tcalculated) for the statistical comparison of these two methods? AAS AES 1.908 2.664 2.309 2.938 3.012 Fresno 5.5 ppm 5.4 ppm Clovis 6.7 ppm 5.0 ppm Selma 12.5 ppm 9.8 ppm

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter7: Statistical Data Treatment And Evaluation
Section: Chapter Questions
Problem 7.16QAP
icon
Related questions
Question
The concentrations of K* in water were measured with atomic absorption spectroscopy (AAS) and
atomic emission spectroscopy (AES). Four water samples obtained at different cities were used, and
each sample was measured one time. The measurements are shown in the table below:
Tulare
Clovis
8.9 ppm
6.7 ppm
7.0 ppm
5.0 ppm
What is the calculated t-value (tcalculated) for the statistical comparison of these two methods?
AAS
AES
1.908
2.664
2.309
2.938
3.012
Fresno
5.5 ppm
5.4 ppm
Selma
12.5 ppm
9.8 ppm
Transcribed Image Text:The concentrations of K* in water were measured with atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES). Four water samples obtained at different cities were used, and each sample was measured one time. The measurements are shown in the table below: Tulare Clovis 8.9 ppm 6.7 ppm 7.0 ppm 5.0 ppm What is the calculated t-value (tcalculated) for the statistical comparison of these two methods? AAS AES 1.908 2.664 2.309 2.938 3.012 Fresno 5.5 ppm 5.4 ppm Selma 12.5 ppm 9.8 ppm
This the follow-up question of Question 7. Do both methods produce the similar results at the 95
% confidence level?
Yes, they produce the similar results.
No, they do not produce the similar results.
Transcribed Image Text:This the follow-up question of Question 7. Do both methods produce the similar results at the 95 % confidence level? Yes, they produce the similar results. No, they do not produce the similar results.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Quality Assurance and Calibration Methods
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Fundamentals Of Analytical Chemistry
Fundamentals Of Analytical Chemistry
Chemistry
ISBN:
9781285640686
Author:
Skoog
Publisher:
Cengage
Appl Of Ms Excel In Analytical Chemistry
Appl Of Ms Excel In Analytical Chemistry
Chemistry
ISBN:
9781285686691
Author:
Crouch
Publisher:
Cengage
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning