(i) The number gives us information about the direction and strength of the linear association between adult-height and height-at- two. (3 dec. pl.) (ii) Adult-height is predicted to be inches when height- at-two is zero inches. (3 dec. pl.) (iii) About percent of the variation in adult height is explained by the linear association with height-at-two. (1 dec. pl.) Be careful to enter your answer as a percent and not as a decimal! (iv) Adult-height is expected to go up/down by inches for every inch increase in height-at-two. (3 dec. pl.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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"Parents are often interested in predicting the eventual heights of their
children."
Height as an adult (in.) Height at age two (in.)
71
39
63
30
63
32
67
34
68
35
68
36
70
36
64
30
The data above are the height-at-two of some children, and their eventual
adult-height. On your calculator, carry out the LinRegTTest and then use the
output to fill in the blanks to make true statements. All but one of the
blanks will require a number. In the blank that appears after "up/down",
enter "up" or "down" as appropriate.
Transcribed Image Text:"Parents are often interested in predicting the eventual heights of their children." Height as an adult (in.) Height at age two (in.) 71 39 63 30 63 32 67 34 68 35 68 36 70 36 64 30 The data above are the height-at-two of some children, and their eventual adult-height. On your calculator, carry out the LinRegTTest and then use the output to fill in the blanks to make true statements. All but one of the blanks will require a number. In the blank that appears after "up/down", enter "up" or "down" as appropriate.
(i) The number
gives us information about the direction
and strength of the linear association between adult-height and height-at-
two. (3 dec. pl.)
(ii) Adult-height is predicted to be
inches when height-
at-two is zero inches. (3 dec. pl.)
(iii) About
percent of the variation in adult height is
explained by the linear association with height-at-two. (1 dec. pl.) Be careful
to enter your answer as a percent and not as a decimal!
(iv) Adult-height is expected to go up/down
by
inches for every inch increase in height-at-two. (3 dec.
pl.)
Transcribed Image Text:(i) The number gives us information about the direction and strength of the linear association between adult-height and height-at- two. (3 dec. pl.) (ii) Adult-height is predicted to be inches when height- at-two is zero inches. (3 dec. pl.) (iii) About percent of the variation in adult height is explained by the linear association with height-at-two. (1 dec. pl.) Be careful to enter your answer as a percent and not as a decimal! (iv) Adult-height is expected to go up/down by inches for every inch increase in height-at-two. (3 dec. pl.)
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