) Display the data in a scatter plot. Choose the correct graph below.   B)Calculate the sample correlation coefficient r.   C)Describe the type of​ correlation, if​ any, and interpret the correlation in the context of the data.   D)d) Use the table of critical values for the Pearson correlation coefficient to make a conclusion about the correlation coefficient. Let α=0.01.   The critical value is______Therefore, there_________sufficient evidence at the 1​%l evel of significance to conclude that_______________between high school​ girls' heights and their IQ scores.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
Section: Chapter Questions
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​(a) Display the data in a scatter plot. Choose the correct graph below.

 

B)Calculate the sample correlation coefficient r.

 

C)Describe the type of​ correlation, if​ any, and interpret the correlation in the context of the data.

 

D)d) Use the table of critical values for the Pearson correlation coefficient to make a conclusion about the correlation coefficient. Let

α=0.01.
 
The critical value is______Therefore, there_________sufficient evidence at the 1​%l evel of significance to conclude that_______________between high school​ girls' heights and their IQ scores.
 
Height, x
IQ score, y
64
109
58
102
66
111
68
114
59
97
65
114
66
120
56
131
Transcribed Image Text:Height, x IQ score, y 64 109 58 102 66 111 68 114 59 97 65 114 66 120 56 131
As high school girls' heights increase, their IQ scores tend to increase.
Increases in high school girls' heights cause their IQ scores to decrease.
As high school girls' heights increase, their IQ scores tend to decrease.
Based on the correlation, there does not appear to be a linear relationship between high school girls' heights and their IQ scores.
Increases in high school girls' heights cause their IQ scores to increase.
Based on the correlation, there does not appear to be any relationship between high school girls' heights and their IQ scores.
Transcribed Image Text:As high school girls' heights increase, their IQ scores tend to increase. Increases in high school girls' heights cause their IQ scores to decrease. As high school girls' heights increase, their IQ scores tend to decrease. Based on the correlation, there does not appear to be a linear relationship between high school girls' heights and their IQ scores. Increases in high school girls' heights cause their IQ scores to increase. Based on the correlation, there does not appear to be any relationship between high school girls' heights and their IQ scores.
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