Now, see the SPSS output file for information on these variables: Sex, Age, Sleep, Job, GPA_Current, GPA_Ideal.

2. Answer the following questions:

a. What is the average (mean) age of the students: _____

median age _____

mode age _____

standard deviation age _____

variance age_____

range age _____

b. What is the average (mean) for the variable "Sex"? ______

c. Does this value make sense? _____. Explain why or why not?_____

d. What percentage of students have a job (use the sum column and compare it to the total for that variable - having a job labeled as "1")? _______

e. What is the average (mean) current GPA? ______

median GPA? ______

f. What is the average ideal GPA?______

mode ideal GPA? ______

g. What is the average number of hours of sleep per week? _____

What is the median? ______

What is the mode? _______

What is the standard deviation?______

g. In looking at the mean, median and mode of Sleep, is this variable skewed? Explain the skewness if any (also identify positive or negative skewness)

Statistics GPA_CURREN SEX AGE SLEEP JOB T GPA_IDEAL N Valid 69 70 69 70 69 69 Missing 1 0 0 1 Mean 5652 20.6429 10.5580 5714 3.0833 3.5458 Median 1.0000 20.0000 7.0000 1.0000 3.0000 3.6000 Mode 1.00 18.00 6.00 1.00 3.00 4.00 Std. Deviation .49936 3.84872 12.77104 49844 .50869 .48185 Variance .249 14.813 163.100 .248 .259 .232 Minimum .00 18.00 2.50 .00 1.90 2.01 Maximum 1.00 42.00 59.00 1.00 4.00 4.00 Sum 39.00 1445.00 728.50 40.00 212.75 244.66\f2g . Frequencies - With Sleep outliers removed Statistics SLEEP N Valid 64 Missing 6 Mean 7.0391 Median 7.0000 Mode 6.00 Std. Deviation 1.47547 Variance 2.177 Minimum 2.50 Maximum 11.00 Sum 450.50