Homework Help is Here – Start Your Trial Now!
Math
Statistics
Before purchasing videoconferencing equipment, a company tested its current internal computer network. The tests measured how rapidly data moved through its network given the current demand on the network. Twenty files ranging in size from 20 to 100 megabytes (MB) were transmitted over the network at various times of day, and the time to send the files (in seconds) recorded in the accompanying data table. The time is given as the number of hours past 8 A.M. on the day of the test. Complete parts (a) through (e). Click the icon to view the data.

Before purchasing videoconferencing equipment, a company tested its current internal computer network. The tests measured how rapidly data moved through its network given the current demand on the network. Twenty files ranging in size from 20 to 100 megabytes (MB) were transmitted over the network at various times of day, and the time to send the files (in seconds) recorded in the accompanying data table. The time is given as the number of hours past 8 A.M. on the day of the test. Complete parts (a) through (e). Click the icon to view the data.

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

A) In the screenshot i provided

B) Does either explanatory variable improve the fit of the model that uses the​ other? Use a test statistic for each. Use α=0.05.

 

Before purchasing videoconferencing equipment, a company tested its current internal computer network. The tests measured how rapidly data moved through its network given the current demand on the network. Twenty files ranging in size from 20 to 100 megabytes (MB) were transmitted over the network at various times of day, and the time to send the files (in seconds) recorded in the accompanying data table. The time is given as the number of hours past 8 A.M. on the day of the test. Complete parts (a) through (e). Click the icon to view the data. (a) Fit the multiple regression of Transfer Time on File Size and Hours past 8. Does the model, taken collectively, explain statistically significant variation in transfer time? Use a = 0.05. because F = with p-value ▼ 0.05. (Round to one decimal place as needed.) Data Table Transfer Time (sec) File Size (MB) Hours past 8 18.4 21 0.00 16.4 24 0.25 15.2 28 0.50 16.6 26 15.5 21.3 17.5 18.3 25.3 20.8 19.4 0.75 1.00 1.25 1.50 1.75 29 31 35 39 52 2.00 2.25 2.50 54 58 21.5 22.5 22.4 68 2.75 3.00 3.25 3.50 64 70 25.7 74 28.1 87 3.75 4.00 4.25 4.50 4.75 33.2 88 28.6 91 24.8 93 31.8 99 Enter your answer in the answer box and then click Check Answer. Print Done
Transcribed Image Text:Before purchasing videoconferencing equipment, a company tested its current internal computer network. The tests measured how rapidly data moved through its network given the current demand on the network. Twenty files ranging in size from 20 to 100 megabytes (MB) were transmitted over the network at various times of day, and the time to send the files (in seconds) recorded in the accompanying data table. The time is given as the number of hours past 8 A.M. on the day of the test. Complete parts (a) through (e). Click the icon to view the data. (a) Fit the multiple regression of Transfer Time on File Size and Hours past 8. Does the model, taken collectively, explain statistically significant variation in transfer time? Use a = 0.05. because F = with p-value ▼ 0.05. (Round to one decimal place as needed.) Data Table Transfer Time (sec) File Size (MB) Hours past 8 18.4 21 0.00 16.4 24 0.25 15.2 28 0.50 16.6 26 15.5 21.3 17.5 18.3 25.3 20.8 19.4 0.75 1.00 1.25 1.50 1.75 29 31 35 39 52 2.00 2.25 2.50 54 58 21.5 22.5 22.4 68 2.75 3.00 3.25 3.50 64 70 25.7 74 28.1 87 3.75 4.00 4.25 4.50 4.75 33.2 88 28.6 91 24.8 93 31.8 99 Enter your answer in the answer box and then click Check Answer. Print Done
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Research Ethics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE 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