Guided Example #2 - Chi-Square Test
Absenteeism of college students from math classes is a major concern to math instructors because missing class appears to increase the drop rate. Three statistics instructors wondered whether the absentee rate was the same for every day of the school week. They took a sample of absent students from three of their statistics classes during one week of the term. The results of the survey appear in the table.
|
|
Monday |
Tuesday |
Wednesday |
Thursday |
Friday |
|---|---|---|---|---|---|
|
Number of students absent |
28 |
22 |
18 |
20 |
32 |
What are the degrees of freedom (df )?
A. 0 B. 1 C. 4 D. 5