From: Daniel Ginsburg (dginsburg@gmail.com)
Date: Sun May 15 2005 - 14:45:59 GMT-3
On 5/14/05, Dillon Yang <dillony@gmail.com> wrote:
[snip]
> 1.1 Theoretic analysis
> Regarding the scores of any exam, it is subjected to the normal
> distribution. For normal distribution, the F(x) indicate the
> probability from 0.0000 to 1.0000, the x is from 3.09 to 3.09, for
> example, when x is 0, the F(x) that means all probability below 0 is
> 0.5, and when x is 1.854, the F(x) will be about 0.9682. You can find
> the value by a common statistical table.
> Dillon can standardization change the scores that is from 0 to 100 to
> the x in F(x) by the formula x=(S-u)/b. The u means the average of all
> scores, and the b is the something of tolerance. Because the average
> of a score must be 50, so Dillon get u equal 50, and Dillon have
> 3.09=(100-50)/b, so the b equal 16.1813. Now Dillon can get that x
> equals 1.854 when the S equals 80, 1.854=(80-50)/16.1813. That means
> the 0.9682 of the total candidate will be rejected if Cisco stick to
> its rule of 80. Dillon n other words, only 0.0318 of the total
> candidates can pass the lab exam if the 80-pass rule is the truth.
There's insufficiently grounded assumption here: you postulate that
the average score is 50. I believe that it is more than that. Remember
how often you hear "I almost nailed it, but missed only few points". I
don't think these people are liars. If average is more than 50 then
assuming normal distribution much more than 3.18% of attempts are
successful.
[snip]
> 2 Quirky Wording
> Maybe Cisco noticed that something abnormity, and adopted the
> nonsensical wording. Cisco maybe believe that the changing wording can
> hold out the cheating without essential modification. Yes, essential
> modifications will be more expensive than only changing wording, but
> we are not all the master degree of literature, even if we are not all
> that english is his mother tongue. Remember? Dillon n the written
> exam, the candidate will have more 30 minutes if his mother tongue is
> not english while the american can get only 2 hours. Why not in lab
> exam?
> The wording is really efficient for those cheating, and for those that
> not cheating, too. Did Cisco ever think about that if an engineer
> designs or implements a network for his clients, his client maybe ask
> unintelligible questions or requirements but he will explain it
> throughout with common wording to help the engineer to finish the job.
> Now, CCIE lab exam gradually becomes a english exam, not technique
> exam, Dillon MHO.
While I'm not a native speaker and my English is way too far from
perfect I found wording of the exam clear enough to understand almost
every task. When I wasn't sure I asked proctor who was very nice and
answered most of my questions.
-- dg #14229
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