Homework Help is Here – Start Your Trial Now!
Math
Statistics
Time (Months) Number of Articles 0-0.9 46 1.0-1.9 18 2.0-2.9 15 3.0-3.9 20 4.0-4.9 14 5.0-5.9 13 Send data to Excel Approximate the variance of the times. Round the answer to at least two decimal places. variance is 12.5

Time (Months) Number of Articles 0-0.9 46 1.0-1.9 18 2.0-2.9 15 3.0-3.9 20 4.0-4.9 14 5.0-5.9 13 Send data to Excel Approximate the variance of the times. Round the answer to at least two decimal places. variance is 12.5

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
**Time to Review** The following table presents the time taken to review articles that were submitted for publication to a particular journal during a recent year. A few articles took longer than 6 months to review; these are omitted from the table. Consider the data to be a population. | Time (Months) | Number of Articles | |---------------|--------------------| | 0.0 - 0.9 | 46 | | 1.0 - 1.9 | 18 | | 2.0 - 2.9 | 15 | | 3.0 - 3.9 | 20 | | 4.0 - 4.9 | 14 | | 5.0 - 5.9 | 13 | **Summary:** - **Variance of the times:** Approximate the variance of the times. Round the answer to at least two decimal places. The variance is **12.5**. - **Standard deviation of the times:** Approximate the standard deviation of the times. Round the answer to at least two decimal places. The standard deviation is **156.8**. **Notes on Variance and Standard Deviation Calculation:** Variance measures how spread out the times are around the mean (average) time. It is the average of the squared differences from the mean. Standard deviation is the square root of the variance, giving a measure of spread in the same units as the original data. To illustrate, the table groups the number of articles reviewed into different time brackets (months). For example, 46 articles took 0 to 0.9 months to review, 18 articles took 1 to 1.9 months, and so on. Using these groupings, the variance was calculated as 12.5, indicating some spread around the average review time. The standard deviation of 156.8 further quantifies this spread in practical terms. For easier manipulation and analysis, the data can be sent to Excel using the provided function.
Transcribed Image Text:**Time to Review** The following table presents the time taken to review articles that were submitted for publication to a particular journal during a recent year. A few articles took longer than 6 months to review; these are omitted from the table. Consider the data to be a population. | Time (Months) | Number of Articles | |---------------|--------------------| | 0.0 - 0.9 | 46 | | 1.0 - 1.9 | 18 | | 2.0 - 2.9 | 15 | | 3.0 - 3.9 | 20 | | 4.0 - 4.9 | 14 | | 5.0 - 5.9 | 13 | **Summary:** - **Variance of the times:** Approximate the variance of the times. Round the answer to at least two decimal places. The variance is **12.5**. - **Standard deviation of the times:** Approximate the standard deviation of the times. Round the answer to at least two decimal places. The standard deviation is **156.8**. **Notes on Variance and Standard Deviation Calculation:** Variance measures how spread out the times are around the mean (average) time. It is the average of the squared differences from the mean. Standard deviation is the square root of the variance, giving a measure of spread in the same units as the original data. To illustrate, the table groups the number of articles reviewed into different time brackets (months). For example, 46 articles took 0 to 0.9 months to review, 18 articles took 1 to 1.9 months, and so on. Using these groupings, the variance was calculated as 12.5, indicating some spread around the average review time. The standard deviation of 156.8 further quantifies this spread in practical terms. For easier manipulation and analysis, the data can be sent to Excel using the provided function.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS