Some official Web sites of regionally accredited colleges have received the highest possible rating from the Federal Department of Education. However, all official Web sites of nationally accredited colleges have received the highest possible rating from the same department.

Which of the following, if added to the statements above, would provide most support for the conclusion that all Web sites administered by individuals holding advanced degrees in educational technology have received the highest possible rating from the Federal Department of Education?


a. Only official Web sites of nationally accredited colleges are administered by individuals holding advanced degrees in educational technology.

b. All official Web sites of nationally accredited colleges are administered by individuals holding advanced degrees in educational technology.

c. Only Web sites that have not received the highest possible rating from the Federal Department of Education are administered by individuals not holding advanced degrees in educational technology.

d. All official Web sites of nationally accredited colleges are administered by individuals holding advanced degrees in educational technology.

e. No Web site administered by individuals holding advanced degrees in educational technology is an official Web site of a regionally accredited college.
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I agree with you kyatin, they look exactly the same.

Vcsid can you please check it.

It is indeed the same.
In any case, please put forth your ans. and explanation.
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I will choose C. Rest of the options don't include the regionally accredited colleges.

Spot on kyatin, It's hard people always mistaking me for the great one.

hopefully I inherited his brains as well. I guess we'll soon find out

I too go with C.

my way was to find a single case with the statement which may be true.

thus C doesnt provide any such cases with which the statement ceases to be false.

regards,
Neo

I guess its time for OA

OA and OE:


The correct answer is (A). You can rephrase (A) as follows: All Web sites administered by individuals holding advanced degrees in educational technology are official Web sites of nationally accredited colleges. In other words, the following two symbolic statements are logically equivalent:

Only A are B.

All B are A.

Given that all Web sites of nationally accredited colleges have received the highest possible rating from the Department, and given that all Web sites administered by individuals holding advanced degrees in educational technology are official Web sites of nationally accredited colleges, it follows logically that all Web sites administered by individuals holding advanced degrees in educational technology have received the highest possible rating from the Department. To follow the logical steps, it helps to express the premises and conclusion symbolically:

Premise: All A are C.

Premise: All B are A.

Conclusion: All B are C.
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Hey vscid.In where of the argument can you prove the colored one? I saw it appear only in the explaination you called OE. I think there is something wrong here.

Do you see the difference btw A and B? The only difference btw them is "ONLY" in A and "ALL" in B. And in logic term A is mistaken reversal of B

B: All A is B
From there you will wrong if you say: All B is A
And A is exactly same as "mistaken reversal" of B
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