Four research teams measured the density of a new alloy, and what each team wrote in its team notebook is shown in the table below. Suppose a later and more reliable measurement gives 7.70 g/cm° for the density of the same alloy. Decide which of the earlier measurements was the most accurate, and which was the most precise.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
Question
**Title: Analyzing Measurement Accuracy and Precision for Alloy Density**

Four research teams measured the density of a new alloy, and their recorded observations are presented in the table below.

**Objective:**  
Determine which of the earlier measurements by the teams was the most accurate and which was the most precise, given a later and more reliable density measurement of 7.70 g/cm³.

**Table: Team Measurements of Alloy Density**

| Team | What Was Written in the Notebook | Most Accurate Measurement | Most Precise Measurement |
|------|----------------------------------|---------------------------|--------------------------|
| A    | “between 7.75 g/cm³ and 7.85 g/cm³” |                           |                          |
| B    | “7.72 g/cm³ ± 0.02 g/cm³”            |                           |                          |
| C    | “7.6 g/cm³”                         |                           |                          |
| D    | “7.50 g/cm³ ± 0.10%”                |                           |                          |

**Instructions:**
- Select the most accurate measurement by comparing how close each team's data is to the reliable measurement of 7.70 g/cm³.
- Determine the most precise measurement by assessing the spread or variation in the recorded data by each team.

**Considerations:**
- Accuracy refers to how close a measurement is to the true or accepted value.
- Precision reflects how reproducible the measurement is, regardless of its closeness to the true value.
Transcribed Image Text:**Title: Analyzing Measurement Accuracy and Precision for Alloy Density** Four research teams measured the density of a new alloy, and their recorded observations are presented in the table below. **Objective:** Determine which of the earlier measurements by the teams was the most accurate and which was the most precise, given a later and more reliable density measurement of 7.70 g/cm³. **Table: Team Measurements of Alloy Density** | Team | What Was Written in the Notebook | Most Accurate Measurement | Most Precise Measurement | |------|----------------------------------|---------------------------|--------------------------| | A | “between 7.75 g/cm³ and 7.85 g/cm³” | | | | B | “7.72 g/cm³ ± 0.02 g/cm³” | | | | C | “7.6 g/cm³” | | | | D | “7.50 g/cm³ ± 0.10%” | | | **Instructions:** - Select the most accurate measurement by comparing how close each team's data is to the reliable measurement of 7.70 g/cm³. - Determine the most precise measurement by assessing the spread or variation in the recorded data by each team. **Considerations:** - Accuracy refers to how close a measurement is to the true or accepted value. - Precision reflects how reproducible the measurement is, regardless of its closeness to the true value.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Uses of d-Block Elements
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
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY