Aresearcher in a retail-marketing unit wanted to test the impact of four different advertising campaigns for a new product on a group of forty randomly selected consumers. she wanted to compare the impact of each advertising campaign on each individual consumer's likelihood of purchasing the product and across the whole group, as well as any interaction effects. what sort of test design best suits this study?

(a) independent factorial design
(b) anova
(c) repeated-measures factorial design
(d) multiple linear regression.

1

step-by-step explanation:

it's the only multiple of both and the least

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.