A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 8 children from her practice, measures their height and head circumference, and obtains the data shown in the table. Complete parts (a) through (e) to the right. (a) If the pediatrician wants to use height to predict head circumference, determine which variable is the explanatory variable and which is the response variable. The explanatory variable is head circumference and the response variable is height. Height (in.) Head Circumference (in.) D 27 25.5 26 17.4 17.2 17.2 O The explanatory variable is height and the response variable is head circumference. 25.75 17 27.75 17.5 26.5 17.2 26.25 17.2 26.75 17.4 Click here to see the Table of Critical Values for Correlation Coefficient.

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Solve question (a) please
A pediatrician wants to determine the relation that may exist between a child's
height and head circumference. She randomly selects 8 children from her
practice, measures their height and head circumference, and obtains the data
shown in the table. Complete parts (a) through (e) to the right.
(a) If the pediatrician wants to use height to predict head circumference,
determine which variable is the explanatory variable and which is the response
variable.
The explanatory variable is head circumference and the response variable
is height.
Height (in.) Head Circumference (in.) D
27
25.5
26
17.4
17.2
17.2
O The explanatory variable is height and the response variable is head
circumference.
25.75
17
27.75
17.5
17.2
17.2
17.4
26.5
26.25
26.75
Click here to see the Table of Critical Values for Correlation Coefficient.
Transcribed Image Text:A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 8 children from her practice, measures their height and head circumference, and obtains the data shown in the table. Complete parts (a) through (e) to the right. (a) If the pediatrician wants to use height to predict head circumference, determine which variable is the explanatory variable and which is the response variable. The explanatory variable is head circumference and the response variable is height. Height (in.) Head Circumference (in.) D 27 25.5 26 17.4 17.2 17.2 O The explanatory variable is height and the response variable is head circumference. 25.75 17 27.75 17.5 17.2 17.2 17.4 26.5 26.25 26.75 Click here to see the Table of Critical Values for Correlation Coefficient.
Critical Values for Correlation Coefficient
3 0.997
0.950
0.878
6 0.811
0.754
8 0.707
9 0.666
10 0.632
11 0.602
12 0.576
13 0.553
14 0.532
15 0.514
16 0.497
17 0.482
18 0.468
19 0.456
20 0.444
21 0.433
22 0.423
23 0.413
24 0.404
25 0.396
26 0.388
27 0.381
28 0.374
29 0.367
30 0.361
4
15
Transcribed Image Text:Critical Values for Correlation Coefficient 3 0.997 0.950 0.878 6 0.811 0.754 8 0.707 9 0.666 10 0.632 11 0.602 12 0.576 13 0.553 14 0.532 15 0.514 16 0.497 17 0.482 18 0.468 19 0.456 20 0.444 21 0.433 22 0.423 23 0.413 24 0.404 25 0.396 26 0.388 27 0.381 28 0.374 29 0.367 30 0.361 4 15
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