Statistical Practice Project 1

Statistical practice project 1

Contents
MAIN BODY.............................................................................................................................................3
Question 1...............................................................................................................................................3
Question 2...............................................................................................................................................6
Question 3.............................................................................................................................................15

MAIN BODY
Question 1
(1) Out of Range Values:
Statistics
Average
ADD
behavior
score in
elementary
school
GENDE
R
Level of
English in
ninth grade
Grade point
average in
ninth grade
Social
problems in
ninth grade
N Valid 88 88 88 88 88
Missing 0 0 0 0 0
Minimum 26 1 1 .67 0
Maximum 85 2 3 4.00 2
ID Variable Out of Range Value
68 Social Problems in ninth
grade
2
Interpretation: -
Above all the given variables only social problems in ninth grade has out of range value which is
2 and this should be marked as missing value in SPSS.
Explanation – In order to find out “out of range” values below steps should be followed-
Analyze > Descriptive > Frequency > Statistics > Check minimum and maximum values.
2.To check variable ADD ‘s Statistics-

Interpretation – From the above table we find out that
value of mean is 52.55 and value of standard deviation is 12.83.
As we can see value of mean and standard deviation is not
close hence data is not normally distributed.
To check statistics of variable level of English in ninth grade-
Statistics
Average ADD behavior
score in elementary school
N Valid 88
Missing 0
Mean 52.55
Median 50.00
Mode 50
Std. Deviation 12.283
Variance 150.871
Range 59
Minimum 26
Maximum 85
Sum 4624
Statistics
Level of English in ninth
grade
N Valid 88
Missing 0
Mean 1.95
Std. Error of
Mean .056
Median 2.00
Mode 2
Std. Deviation .523
Variance .274
Range 2
Maximum 3