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01 Jun 2026, 02:26
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
71% (01:52) correct
29%
(02:00)
wrong
based on 31
sessions
History
Date
Time
Result
Not Attempted Yet
Advertisement for ShopEx Supermarkets: Dozens of shoppers, chosen at random, were asked as they came out of their ShopEx stores what they had purchased. The prices of the very same items at the nearest PriceKing store were totaled and compared with the ShopEx total. At ShopEx, the totals averaged five percent less than at PriceKing. So, for overall savings on their food bills, shoppers should go to ShopEx instead of PriceKing.
Which of the following, if true, most seriously undermines the argument of the advertisement?
A. When more than 20 items were selected, the PriceKing totals averaged more than five percent higher than the ShopEx totals.
B. Many shoppers consider additional factors other than price in choosing the supermarket at which they shop most regularly.
C. Virtually every grocery item that can be found at PriceKing can also be found at ShopEx.
D. When purchasing items in a grocery store, shoppers tend to select those items that are on sale, and different stores have sales on different items.
E. Most of the shoppers who were stopped on their way out of ShopEx said that they shopped at PriceKing either regularly or occasionally.
Which of the following, if true, most seriously undermines the argument of the advertisement?
A. When more than 20 items were selected, the PriceKing totals averaged more than five percent higher than the ShopEx totals.
B. Many shoppers consider additional factors other than price in choosing the supermarket at which they shop most regularly.
C. Virtually every grocery item that can be found at PriceKing can also be found at ShopEx.
D. When purchasing items in a grocery store, shoppers tend to select those items that are on sale, and different stores have sales on different items.
E. Most of the shoppers who were stopped on their way out of ShopEx said that they shopped at PriceKing either regularly or occasionally.
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01 Jun 2026, 15:00
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Advertisement for ShopEx Supermarkets: Dozens of shoppers, chosen at random, were asked as they came out of their ShopEx stores what they had purchased. The prices of the very same items at the nearest PriceKing store were totaled and compared with the ShopEx total. At ShopEx, the totals averaged five percent less than at PriceKing. So, for overall savings on their food bills, shoppers should go to ShopEx instead of PriceKing.
Which of the following, if true, most seriously undermines the argument of the advertisement?
The correct answer to this Weaken question will show that, even though the evidence is true, the conclusion may not be.
A. When more than 20 items were selected, the PriceKing totals averaged more than five percent higher than the ShopEx totals.
This strengthens, rather than weakens the case for the conclusion.
Eliminate.
B. Many shoppers consider additional factors other than price in choosing the supermarket at which they shop most regularly.
The conclusion is about savings, not "additional factors."
Eliminate.
C. Virtually every grocery item that can be found at PriceKing can also be found at ShopEx.
This is another reason to go to ShopEx and thus, if anything, supports the conclusion.
Eliminate.
D. When purchasing items in a grocery store, shoppers tend to select those items that are on sale, and different stores have sales on different items.
This choice is interesting.
After all, it indicates that the items that people had purchased were likely on sale. So, the comparison isn't valid.
E. Most of the shoppers who were stopped on their way out of ShopEx said that they shopped at PriceKing either regularly or occasionally.
Where they shop doesn't affect prices or savings.
Eliminate.
Correct answer: D
Which of the following, if true, most seriously undermines the argument of the advertisement?
The correct answer to this Weaken question will show that, even though the evidence is true, the conclusion may not be.
A. When more than 20 items were selected, the PriceKing totals averaged more than five percent higher than the ShopEx totals.
This strengthens, rather than weakens the case for the conclusion.
Eliminate.
B. Many shoppers consider additional factors other than price in choosing the supermarket at which they shop most regularly.
The conclusion is about savings, not "additional factors."
Eliminate.
C. Virtually every grocery item that can be found at PriceKing can also be found at ShopEx.
This is another reason to go to ShopEx and thus, if anything, supports the conclusion.
Eliminate.
D. When purchasing items in a grocery store, shoppers tend to select those items that are on sale, and different stores have sales on different items.
This choice is interesting.
After all, it indicates that the items that people had purchased were likely on sale. So, the comparison isn't valid.
E. Most of the shoppers who were stopped on their way out of ShopEx said that they shopped at PriceKing either regularly or occasionally.
Where they shop doesn't affect prices or savings.
Eliminate.
Correct answer: D
01 Jun 2026, 20:00
Kudos
Bookmarks
Advertisement for ShopEx Supermarkets: Dozens of shoppers, chosen at random, were asked as they came out of their ShopEx stores what they had purchased. The prices of the very same items at the nearest PriceKing store were totaled and compared with the ShopEx total. At ShopEx, the totals averaged five percent less than at PriceKing. So, for overall savings on their food bills, shoppers should go to ShopEx instead of PriceKing.
Which of the following, if true, most seriously undermines the argument of the advertisement?
The advertisement compares items actually bought at ShopEx with the prices of those same items at PriceKing. But this may be biased if shoppers at each store tend to buy what is on sale there. The key flaw is that the comparison may use a ShopEx-favorable basket, not a neutral basket of typical grocery purchases.
A. When more than 20 items were selected, the PriceKing totals averaged more than five percent higher than the ShopEx totals.
This strengthens the advertisement. It says PriceKing was even more expensive in some larger purchases.
B. Many shoppers consider additional factors other than price in choosing the supermarket at which they shop most regularly.
This does not undermine the price claim. The conclusion is about savings on food bills, not about convenience, quality, or preference.
C. Virtually every grocery item that can be found at PriceKing can also be found at ShopEx.
This does not weaken the argument. It suggests the stores carry similar items, which may make the comparison more reasonable.
D. When purchasing items in a grocery store, shoppers tend to select those items that are on sale, and different stores have sales on different items.
This is correct. If ShopEx shoppers bought items that were on sale at ShopEx, then those same items may not have been on sale at PriceKing. So the comparison would not prove that ShopEx gives better overall savings.
E. Most of the shoppers who were stopped on their way out of ShopEx said that they shopped at PriceKing either regularly or occasionally.
This does not weaken the argument. It says the shoppers know both stores, but it does not show that the price comparison is misleading.
Answer: (D)
Which of the following, if true, most seriously undermines the argument of the advertisement?
The advertisement compares items actually bought at ShopEx with the prices of those same items at PriceKing. But this may be biased if shoppers at each store tend to buy what is on sale there. The key flaw is that the comparison may use a ShopEx-favorable basket, not a neutral basket of typical grocery purchases.
A. When more than 20 items were selected, the PriceKing totals averaged more than five percent higher than the ShopEx totals.
This strengthens the advertisement. It says PriceKing was even more expensive in some larger purchases.
B. Many shoppers consider additional factors other than price in choosing the supermarket at which they shop most regularly.
This does not undermine the price claim. The conclusion is about savings on food bills, not about convenience, quality, or preference.
C. Virtually every grocery item that can be found at PriceKing can also be found at ShopEx.
This does not weaken the argument. It suggests the stores carry similar items, which may make the comparison more reasonable.
D. When purchasing items in a grocery store, shoppers tend to select those items that are on sale, and different stores have sales on different items.
This is correct. If ShopEx shoppers bought items that were on sale at ShopEx, then those same items may not have been on sale at PriceKing. So the comparison would not prove that ShopEx gives better overall savings.
E. Most of the shoppers who were stopped on their way out of ShopEx said that they shopped at PriceKing either regularly or occasionally.
This does not weaken the argument. It says the shoppers know both stores, but it does not show that the price comparison is misleading.
Answer: (D)
