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  #31  
Old 11-01-2003, 11:08 PM
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modelthry modelthry is offline
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Quote:
Originally Posted by BassFreq

What am I saying???? No, #40 is not a defective question. Since 1 was not a choice, ya'll should've known to use the p<sub>k</sub>=pq^(x-1) version of the distribution!
Except that this version has no Beta in the definition. The one in the tables does, so the presence of Beta in the problem strongly suggests they're referring to the table version.
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  #32  
Old 11-02-2003, 01:02 AM
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I really want it to count so that fewer people pass and those of us that do become more valuable. To be fair, had I gotton it wrong, I would be on your side completely.

I suspect what happened was: The author, having looked over the material in Simulation, submitted the question with p=.3. The committee (or someone on it) changed it to the "equivalent" B=7/3, not knowing that one distribution starts at k=0 while the other starts at k=1.

Another way to look at it all is to say that, since B was given, the correct solution would be given by:

INT[ Ln( 1 - 12/25) / LN( 1/(1+1/B) )] + 1
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  #33  
Old 11-02-2003, 02:13 AM
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40 absolutely should be considered defective. The tables that they provided us yeilded an answer of 1 which was not an option.
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  #34  
Old 11-03-2003, 07:30 AM
DukeCrow DukeCrow is offline
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If you use 1-u instead of u, W<sub>3</sub> = 2. It's too bad they didn't specify on the question that small u's corresponded to high number of losses.

Very poorly worded question.
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  #35  
Old 11-03-2003, 12:17 PM
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when will the cas post the exam and solutions on the casact site?
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  #36  
Old 11-03-2003, 02:13 PM
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RE: question 39

Maybe some one can help me out here... How is it rational for to set up your accept/reject in an order other than 1-5 or 5-1? I had assumed that you were asked the following questions: which is more efficient, u=F(x) or u=S(x)? Is there some reason why this logic is incorrect? If it is correct, wouldn't the correct answer be B?
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  #37  
Old 11-03-2003, 02:54 PM
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Quote:
Originally Posted by DukeCrow
If you use 1-u instead of u, W<sub>3</sub> = 2. It's too bad they didn't specify on the question that small u's corresponded to high number of losses.

Very poorly worded question.
In fact, that's how I ended up with 2 ... after first getting 1.
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  #38  
Old 11-04-2003, 08:59 PM
ramanujan ramanujan is offline
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Quote:
Originally Posted by ramanujan
I would guess the pass marks to be >25 (27?). Any thoughts, anyone?
Spoke too soon. I am not passing with a pass score of 27.
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  #39  
Old 11-04-2003, 11:03 PM
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How official is the preliminary answer key? Have they changed it before after publishing it?
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  #40  
Old 11-05-2003, 10:32 AM
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its been updated as of 11/5

#3 is now B
#25 is now B
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