Administrators are certain about the effectiveness of the Clearwater Preschool spelling program. The average spelling score is 28 for children of comparative age. The data below are spelling scores...

Administrators are certain about the effectiveness of the Clearwater Preschool spelling program.  The average spelling score is 28 for children of comparative age.  The data below are spelling scores from a sample of children from Clearwater Preschool.  Scores range from 0 - 40 with higher scores indicating better spelling.  What can be concluded with an α of 0.05

Scores:

27
33
38
17
19
27
29
18
21
35
18
28
23
22
24
20
35
24
17
16

A) Input the appropriate value(s) to make a decision about
H
₀

p value=           / Decision: Reject or Fail to Reject

B)Compute the corresponding effect size(s) and indicate magnitude(s).

d=

r2=

C) Make a decision:

Clearwater Preschool has a significantly effective spelling program.

Clearwater Preschool has a significantly ineffective spelling program.     Clearwater Preschool spelling program does not have a significant effect.