a$.$ Based on the data displayed on the initial spreadsheet, which message channel $($advertising medium$)$ would you recommend to Helen?

Pandora

Magazine

Both have roughly the same cost per buyer

b$.$ The agency that offered to prepare Helen's magazine ad will prepare a fully produced Pandora ad$-$including a musical jinglefor $$2,500.$ The agency claims that its musical ad will have much more impact than the ad Pandora will create. The agency says Its ad should produce the same results as the Pandora ad with $20$ percent fewer insertions. If the agency claim is correct, would it be wise for Troy to pay the agency to produce the ad$?$

Yes, the agency ad is more cost effective.

No$,$ the agency ad will be less cost effective.

The cost per buyer is roughly the same regardless of who makes the ad$.$

c$.$ Helen wonders if it would make sense to run the ads longer in order to get even higher awareneds. She estimates that the percent of prospects aware can increase from $80\%$ to $95\%$ if she pays for $30\%$ more insertions $(30\%$ more than the initial $60$ insertions$).$ Would this be a good decision? Assume they use the initial ad with preparation cost $+$$$200.$

Yes, if she uses Pandora.

Yes, if she uses the magazine.

Yes, it will be better no matter which option she pursues.

No$,$ it will be worse no matter which option she pursues.

d$.$ The agency will not guarantee that its custom$-$produced $($and more expensive to prepare$)$ Pandora ad will reach Helen's obiective$-$makina $80$ percent of the prospects aware of the new store. Helen wants to see how lower levels