kchen1994
MamtaKrishnia
To be honest this question is challenging because B, C, and E all present criticisms of the conclusion. If someone can share insight into why D is better than B and C, I'd love to know
Surveys show that every year
only 10 percent of cigarette smokers switch brands. Yet the
manufacturers have been spending an amount equal to 10 percent of their gross receipts on cigarette
promotion in magazines.
CONCLUSION : It follows from these figures that
inducing cigarette smokers to switch brands did not pay[/b], and that cigarette [b]companies would have been no worse off economically if they had dropped their advertising.Of the following, the
best criticism of the conclusion that inducing cigarette smokers to switch brands did not pay is that the conclusion is based on
(A) computing advertising costs as a percentage of gross receipts, not of overall costs.
INCORRECT: overall costs are irrelevant when it clearly stated as a percent of some other components. It would have been relevant if the conclusion would have mentioned overall costs as a base.
(B) past patterns of smoking and may not carry over to the future.
INCORRECT: if we look at the conclusion, it is still based on the evaluation of past results. "companies would have been no worse off economically if they had dropped their advertising."
There is no link to the future. The argument is not basing any prediction or future claim on the basis of the past patterns. It is evaluating the past results on basis of past actions of the companies.
(C) the assumption that each smoker is loyal to a single brand of cigarettes at any one time.
INCORRECT. This clearly is not the assumption let alone a loophole. it is explicitly mentioned that 10% of people did switch. So "each" rules out this option.
(D) the assumption that each manufacturer produces only one brand of cigarettes
INCORRECT.
If we negate the conclusion, this answer choice does not support the negated conclusion.
Strategy for weakening: negate the conclusion and look for supporting the negated conclusion - inducing smokers to switch brands paid off.
one brand of cigarettes doesn't really contribute.
(E) figures for the cigarette industry as a whole and may not hold for a particular company
CORRECT. Now there we have a major discrepancy pointed out. 10% of all smokers versus at least one company that could have benefitted.
This supports the negated conclusion that inducing smokers did pay off.
PLEASE KUDOS IF THIS HELPS

[/b]