1.2 In a pilot study examining the effectiveness of three advertisements (A, B and C), 10 consumers...

Question:

1.2 In a pilot study examining the effectiveness of three advertisements (A, B and C), 10 consumers were assigned to view each advertisement and rate it on a nine-point Likert scale. The data obtained from the 30 participants are shown in the following table:

image text in transcribed

a Calculate the category means and the grand mean.
b Calculate SSy into SSx and SSerror.
c Calculate h2.
d Calculate the value of F.
e Are the three advertisements equally effective?

Fantastic news! We've Found the answer you've been seeking!