Homework Help is Here – Start Your Trial Now!
Math
Statistics
(a) Construct a scatterplot of the data. 0.3 0.2 0.1 ELDE 0.0 -0.1 20 y O 0.3 0.2 0.1 -0.1 10 15 20 0.3 0.2. 0.1 0.0 -0.1 5 10 15 10 15 20 How would you describe the relationship between x and y? O There is an outlier in the lower left of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper right of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper left of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. O There is an outlier in the lower right of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. (c) What value of net directionality would you predict for a stream that had mean water temperature of 13°C? (Round your answer to four decimal places.) y 0.3 0.2 0.1 0.0 -0.1 (b) Find the equation of the least-squares line describing the relationship between y net directionality and x = mean water temperature. (Round your numerical values to four decimal places.) ŷ = 5 10 15 20 X Ⓡ

(a) Construct a scatterplot of the data. 0.3 0.2 0.1 ELDE 0.0 -0.1 20 y O 0.3 0.2 0.1 -0.1 10 15 20 0.3 0.2. 0.1 0.0 -0.1 5 10 15 10 15 20 How would you describe the relationship between x and y? O There is an outlier in the lower left of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper right of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper left of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. O There is an outlier in the lower right of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. (c) What value of net directionality would you predict for a stream that had mean water temperature of 13°C? (Round your answer to four decimal places.) y 0.3 0.2 0.1 0.0 -0.1 (b) Find the equation of the least-squares line describing the relationship between y net directionality and x = mean water temperature. (Round your numerical values to four decimal places.) ŷ = 5 10 15 20 X Ⓡ

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
100%
The authors of a paper investigated whether water temperature was related to how far a salamander would swim and whether it would swim upstream or downstream. Data for 14 streams with different mean water temperatures where salamander larvae were released are given (approximated from a graph that appeared in the paper). The two variables of interest are x = mean water temperature (°C) and y = net directionality, which was defined as the difference in the relative frequency of the released salamander larvae moving upstream and the relative frequency of released salamander larvae moving downstream. A positive value of net directionality means a higher proportion were moving upstream than downstream. A negative value of net directionality means a higher proportion were moving downstream than upstream. Mean Temperature (x) 6.22 8.01 8.67 10.51 12.4 12.04 12.55 17.93 18.34 19.84 20.3 19.12 17.68 19.57 USE SALT Net Directionality (y) -0.08 0.25 -0.14 0.00 0.08 0.03 -0.07 0.29 0.23 0.24 0.19 0.14 0.05 0.07
Transcribed Image Text:The authors of a paper investigated whether water temperature was related to how far a salamander would swim and whether it would swim upstream or downstream. Data for 14 streams with different mean water temperatures where salamander larvae were released are given (approximated from a graph that appeared in the paper). The two variables of interest are x = mean water temperature (°C) and y = net directionality, which was defined as the difference in the relative frequency of the released salamander larvae moving upstream and the relative frequency of released salamander larvae moving downstream. A positive value of net directionality means a higher proportion were moving upstream than downstream. A negative value of net directionality means a higher proportion were moving downstream than upstream. Mean Temperature (x) 6.22 8.01 8.67 10.51 12.4 12.04 12.55 17.93 18.34 19.84 20.3 19.12 17.68 19.57 USE SALT Net Directionality (y) -0.08 0.25 -0.14 0.00 0.08 0.03 -0.07 0.29 0.23 0.24 0.19 0.14 0.05 0.07
(a) Construct a scatterplot of the data. y 0.3 0.2 0.1 0.0 -0.1 5 10 15 20 X y 0.3 0.2 0.1 0.0 -0.1 5 10 15 20 X y 0.3 0.2 0.1 0.0 -0.1 5 10 15 20 (c) What value of net directionality would you predict for a stream that had mean water temperature of 13°C? (Round your answer to four decimal places.) X How would you describe the relationship between x and y? O There is an outlier in the lower left of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper right of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper left of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. O There is an outlier in the lower right of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. y 0.3 0.2 0.1 0.0 -0.1 (b) Find the equation of the least-squares line describing the relationship between y = net directionality and x = mean water temperature. (Round your numerical values to four decimal places.) ŷ = 5 10 15 20 X
Transcribed Image Text:(a) Construct a scatterplot of the data. y 0.3 0.2 0.1 0.0 -0.1 5 10 15 20 X y 0.3 0.2 0.1 0.0 -0.1 5 10 15 20 X y 0.3 0.2 0.1 0.0 -0.1 5 10 15 20 (c) What value of net directionality would you predict for a stream that had mean water temperature of 13°C? (Round your answer to four decimal places.) X How would you describe the relationship between x and y? O There is an outlier in the lower left of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper right of the window. If we disregard that outlier, then there is a negative linear relationship between mean temperature and net directionality. O There is an outlier in the upper left of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. O There is an outlier in the lower right of the window. If we disregard that outlier, then there is a positive linear relationship between mean temperature and net directionality. y 0.3 0.2 0.1 0.0 -0.1 (b) Find the equation of the least-squares line describing the relationship between y = net directionality and x = mean water temperature. (Round your numerical values to four decimal places.) ŷ = 5 10 15 20 X
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 12 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