To test whether students in a higher grade level would be less disruptive in cla

Question

To test whether students in a higher grade level would be less disruptive in class, a school psychologist recorded the number of documented interruptions during one day of classes from nine local high schools. The sample consisted of nine freshman, sophomore, junior, and senior high school classes. The summary data for each high school class is given in the following table.

Interruptions N Mean L SD 9 24 44 1.67 Freshman Sophomore 9 2.22 1.86 Junior 9 3.33 2.12 Senior 9 3.22 1.09 Total 36 2.81 1.72 Complete the following F table. Round Band D appropriately to 3 decimal places. Mean Square F Sig. ANOVA Sum of Squares df A B .929 .438 Between Groups Within Groups 95.333 (Error) Total 103.639 E F. Is there a significant difference among the classes? (yes/no) G. Is it necessary to compute a post hoc test? (yes/no)

Explanation / Answer

Here,

k = Type of interruptions = 4

N = Total no. of interruptions = 36

So,

A = k - 1 = 4 - 1 = 3

B = 8.306 / A = 8.306 / 3 = 2.7687

C = N - k = 36 - 4 = 32

D = 95.333 / C = 95.333 / 32 = 2.9792

E = N - 1 = 36 - 1 = 35

F. No

G. No

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.