7. The age x in months and vocabulary y were measured for six children, with the results shown in the table. X 20 23 30 37 35 45 51 55 60 63 y 72 71 73 74 74 73 72 79 75 77 a. Compute the least squares regression line.

7. The age x in months and vocabulary y were measured for six children, with the results shown in the table. X 20 23 30 37 35 45 51 55 60 63 y 72 71 73 74 74 73 72 79 75 77 a. Compute the least squares regression line.

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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Assume you have noted the following prices for books and the number of pages that each book contains. Book Pages (x) Price (y) A 500 $7.00 B 700 7.50 C 750 9.00 D 590 6.50 E 540 7.50 F 650 7.00 G 480 4.50 a. Develop a least-squares estimated regression line. b. Compute the coefficient of determination and explain its meaning. c. Compute the correlation coefficient between the price and the number of pages.
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