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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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
Transcribed Image Text:Does the age at which a child beings to talk predict a later score on a test of mental ability? A study
of the development of young children recorded the age in months at which each of 21 children spoke
their first word and their Gesell Adaptive Score, the result of an aptitude test taken much later. A
summary of the data is given in the computer output.
Predictor
Сoef
SE Coef
T
0.000
0.002
Constant
109.874
5.068
21.68
-1.1270
0.3102
-3.63
Age
S = 11.0229
R-Sq=41.0%
R-Sq(adj)=37.9%
6. Interpret the r value in context.
7. Interpret the r² value in context.
8. Interpret the slope in context.
9. Interpret the y-intercept in context.
10. Interpret the s value in context.
11. Interpret the SE, value in context.
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