Does the attendance in nursery school relate to the thinking skills of a pupil? Assume ti pupils were randomly chosen from a Grade 1 class and were given a test on thinking sh Given the scores below, are these two variables related? For attendance of nursery sch "1" means did attend and "0" did not attend. Tala 7 2.

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a. Calculate the point biserial correlation coefficient.

b. Test the significance of association using t test.

3. Does the attendance in nursery school relate to the thinking skills of a pupil? Assume that 12
pupils were randomly chosen from a Grade 1 class and were given a test on thinking skills.
Given the scores below, are these two variables related? For attendance of nursery school,
"1" means did attend and "0" did not attend.
Table 7.3 Sample Scores of Twelve Pupils in Two Variables
Score in
Attendance
Pupil
Thinking
in nursery
Skill Test
A.
1.
28
В
1.
18
19
D
15
E
1.
27
F
1.
29
G
1
23
H
1
18
I
16
J
1
17
K.
13
1
19
Transcribed Image Text:3. Does the attendance in nursery school relate to the thinking skills of a pupil? Assume that 12 pupils were randomly chosen from a Grade 1 class and were given a test on thinking skills. Given the scores below, are these two variables related? For attendance of nursery school, "1" means did attend and "0" did not attend. Table 7.3 Sample Scores of Twelve Pupils in Two Variables Score in Attendance Pupil Thinking in nursery Skill Test A. 1. 28 В 1. 18 19 D 15 E 1. 27 F 1. 29 G 1 23 H 1 18 I 16 J 1 17 K. 13 1 19
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