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Which of the following most logically completes the

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Which of the following most logically completes the [#permalink] New post 24 May 2008, 23:19
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33% (02:12) correct 67% (01:57) wrong based on 2 sessions
Which of the following most logically completes the argument?

Researchers recently asked dozens of shoppers, chosen at random coming out of a FoodBasket supermarket, what they had purchased. The prices of the very same items at the nearest ShopperKing supermarket were totaled and compared with the FoodBasket total. The ShopperKing totals averaged five percent higher than the FoodBasket totals. Nevertheless, this result does not necessarily show that shoppers at ShopperKing would save money overall by shopping at FoodBasket instead, since ______.

shoppers who shop regularly at a given supermarket generally choose that store for the low prices offered on the items that they purchase most often

for shoppers with more than 20 items, the ShopperKing totals averaged more than five percent higher than the FoodBasket totals

many shoppers consider factors other than price in choosing the supermarket at which they shop most regularly

there is little variation from month to month in the overall quantity of purchases made at supermarkets by a given shopper

none of the people who conducted the research were employees of the FoodBasket supermarket
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Re: CR - shoppers at ShopperKing [#permalink] New post 25 May 2008, 00:04
A
Since people who went to foodbasket usually buy certain items they know is cheaper than the other store. And shopper who shops at shopperking will buy a certain selection of items that averages to be cheaper than the ones at foodbasket.
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Re: CR - shoppers at ShopperKing [#permalink] New post 23 Mar 2011, 11:45
billyjeans wrote:
A
Since people who went to foodbasket usually buy certain items they know is cheaper than the other store. And shopper who shops at shopperking will buy a certain selection of items that averages to be cheaper than the ones at foodbasket.


But the sopper who shops at shopperking could save money because the same products are cheaper at foodbasket.
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Re: CR - shoppers at ShopperKing [#permalink] New post 23 Mar 2011, 14:12
noboru wrote:
billyjeans wrote:
A
Since people who went to foodbasket usually buy certain items they know is cheaper than the other store. And shopper who shops at shopperking will buy a certain selection of items that averages to be cheaper than the ones at foodbasket.


But the sopper who shops at shopperking could save money because the same products are cheaper at foodbasket.



shoppers who shop regularly at a given supermarket generally choose that store for the low prices offered on the items that they purchase most often More frequent items will add to more expenses over a time period, and buying these items at lower prices will increase the savings. And the surveyed people wouldn't have bought the more frequent items on that survey day, and hence we can not tell that survey results show the actual savings. This statement will support the argument to some extent, but we can see how next options do

for shoppers with more than 20 items, the ShopperKing totals averaged more than five percent higher than the FoodBasket totals -- this recommends FoodBasket store in fact, and hence eliminated

many shoppers consider factors other than price in choosing the supermarket at which they shop most regularlybut we are only concerned about cost here, so eliminated

there is little variation from month to month in the overall quantity of purchases made at supermarkets by a given shopperthis will not support any super marker total price either

none of the people who conducted the research were employees of the FoodBasket supermarketirrelevant

so its A.
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Re: CR - shoppers at ShopperKing [#permalink] New post 23 Mar 2011, 15:22
The best answer is (A). Remember, the best answer is not necessarily a "good" piece of logic, just more correct than the other choices. This question illustrates this.

This is a typical CR "Survey" question, testing your ability to detect strong conclusions based on weak evidence. Whenever you see a question with any number of people surveyed, you should immediately be on the look-out for any very specific conclusions based on this survey. Generally, a survey, no matter how broad or well thought-out, will not be enough to warrant strong conclusions.

Note that answer A does not rely on anyone sampled in the survey and instead states a general truism about shopping habits.

Choice (B) is incorrect not only because we are still dealing with sample sizes, but also because the sub-sample of those surveyed who had over twenty items is unknown -- what if it was just one or two people? Clearly not enough to draw a conclusion.

Choices (C) and (E) have nothing to do with the question.

Choice (D) attempts to confuse you by leveraging a piece of evidence offered in choice (B).


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Re: CR - shoppers at ShopperKing [#permalink] New post 23 Mar 2011, 15:39
to do a logic problem first you should find exactly what is being asked and what information you have to answer. in the above problem the most important part of the question stem is:

"Nevertheless, this result does not necessarily show that shoppers at ShopperKing would save money overall by shopping at FoodBasket instead, since ______."

this portion of the stem is telling you what to look for exactly, and the rest of the stem are just helping you...

there is only one correct answer, and there is no such thing as the better answer. for this question A is the correct answer... A is the only option that could complete the statement and would be logical....
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Re: CR - shoppers at ShopperKing [#permalink] New post 23 Mar 2011, 15:45
by the way while answering logic questions be aware of the way that the answer choices are being presented to you. the test maker could trick you. they could put a very weak but correct answer for choice a, which most of the people will by pass with the hope to find better answer in latter choices. then they will present a very strong but logically incorrect answer in choice D or C. unfortunately because of the mental make up of the test takers and the time pressure most of the people will fall for these types of traps.

or closer to the end of the test they will do the exact opposite... so watch out for psycological traps by the test makers
Re: CR - shoppers at ShopperKing   [#permalink] 23 Mar 2011, 15:45
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