I’m interested in assessing whether someone’s resting heart rate (X) is related to how fast they are able to finish running a 5k race (5k is 3.1 miles) (Y). I gather data from a set of runners and want to see whether, at an alpha of 0.05, there is a significant relationship between resting heart rate and finish time. Use the data below to answer this question: Resting Heart Rate (measured in beats/min) Finish Time (measured in minutes) (Y) 54 30 65 33 60 35 60 32 75 35 70 36 80 45 60 36 55 29 55 27 60 30 Calculate the sum of squares for XY __________________________ What is the correlation coefficient? Is it strong or weak? Positive or negative? __________________________ What can we conclude?
I’m interested in assessing whether someone’s resting heart rate (X) is related to how fast they are able to finish running a 5k race (5k is 3.1 miles) (Y). I gather data from a set of runners and want to see whether, at an alpha of 0.05, there is a significant relationship between resting heart rate and finish time. Use the data below to answer this question: Resting Heart Rate (measured in beats/min) Finish Time (measured in minutes) (Y) 54 30 65 33 60 35 60 32 75 35 70 36 80 45 60 36 55 29 55 27 60 30 Calculate the sum of squares for XY __________________________ What is the correlation coefficient? Is it strong or weak? Positive or negative? __________________________ What can we conclude?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
. I’m interested in assessing whether someone’s resting heart rate (X) is related to how fast they are able to finish running a 5k race (5k is 3.1 miles) (Y). I gather data from a set of runners and want to see whether, at an alpha of 0.05, there is a significant relationship between resting heart rate and finish time. Use the data below to answer this question:
|
Resting Heart Rate (measured in beats/min) |
Finish Time (measured in minutes) (Y) |
|
54 |
30 |
|
65 |
33 |
|
60 |
35 |
|
60 |
32 |
|
75 |
35 |
|
70 |
36 |
|
80 |
45 |
|
60 |
36 |
|
55 |
29 |
|
55 |
27 |
|
60 |
30 |
- Calculate the sum of squares for XY
__________________________
- What is the
correlation coefficient ? Is it strong or weak? Positive or negative?
__________________________
- What can we conclude?
______________________________________________________________________
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