In: Math
In an effort to promote a new product, a marketing firm asks participants to rate the effectiveness of ads that varied by length (short, long) and by type of technology (static, dynamic, interactive). Higher ratings indicated greater effectiveness.
| Source of Variation | SS | df | MS | F |
|---|---|---|---|---|
| Length | 10 | |||
| Technology | ||||
| Length × Technology | 142 | |||
| Error | 570 | 114 | ||
| Total | 862 |
(a) Complete the F-table and make a decision to retain or reject the null hypothesis for each hypothesis test. (Assume experimentwise alpha equal to 0.05.)
|
Source of Variation |
SS | df | MS | F |
|---|---|---|---|---|
| Length | 10 | |||
| Technology | ||||
| Length
× Technology |
142 | |||
| Error | 570 | 114 | ||
| Total | 862 |