Question

The marketing manager at a local chain supermarket is testing the effectiveness of four advertising strategies (Factor A) on sales, and runs the advertising over a two-week period. It is suspected that sales also differs by store locations because of differing customer traffic; therefore, the stores were blocked on location (Factor B). The manager wants to understand how sales depends upon advertising strategy and location using a two-way ANOVA without interaction. The sales (in $1000s), along with column, row, and overall means, are displayed below. How many degrees of freedom are there for factors A and B, respectively

Answer 1

Option B (11) seems to be the correct response.

Step-by-step explanation:

The given question is incomplete. Please find attachment of the complete query.

As we know, from the given output or outcome

i.e., N = 12

Factor A = 4

Factor B = 3

∴
`4* 3=12`

The total degree of freedom will be:

⇒
`N-1`

⇒
`12-1`

⇒
`11`

All other suggestions made were never appropriate for the question issued. So, the right approach is "11."