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  #21  
Old 04-30-2006, 11:43 AM
sam_broverman sam_broverman is offline
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Frankie,

The level of difficulty is variable, but I think,
on average, these questions are about the same
level as actual exam questions.

Sam Broverman
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  #22  
Old 05-01-2006, 08:29 AM
sam_broverman sam_broverman is offline
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Default May 1 Question

You can find the question at:
http://www.sambroverman.com/may1c.pdf

Sam Broverman
2brove@rogers.com
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  #23  
Old 05-02-2006, 11:47 PM
alphaace alphaace is offline
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Default February 13th question

Hi,

I agree with your solution up to the point ln (n) < 4.605. However if the max integer value of n is as the solution says 100, then ln(n) = 4.605170186 which is greater than 4.605. So shouldn't n really be 99?

Thanks,
Greg
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  #24  
Old 05-03-2006, 09:36 AM
sam_broverman sam_broverman is offline
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Greg,

You are right. Based on the Exam C Chi-Square table
value of 9.210 , we get n < 99.99 , so the max n should have
been 99. I chose numbers that cut the inequality
too close. I'll post a correction. Thanks for mentioning that.

SB
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  #25  
Old 05-08-2006, 08:38 AM
sam_broverman sam_broverman is offline
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Default May 8 Question

You can find the question at:
http://www.sambroverman.com/may8c.pdf


Sam Broverman
2brove@rogers.com
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  #26  
Old 05-08-2006, 03:44 PM
alphaace alphaace is offline
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I am a bit confused why for the final answer you put f '(0) = -.8. I thought we were asked to find the natural cubic spline so wouldn't we in fact need three functions there in terms of x?

Thanks,
Greg R.
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  #27  
Old 05-09-2006, 07:07 PM
sam_broverman sam_broverman is offline
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What I meant was to ask for was f'(0) .
I have posted a revised version of the question.

SB
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  #28  
Old 05-10-2006, 10:00 AM
Sherri Sherri is offline
 
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Default About May 8

the question has not pointed out that we must use natural cubic spline!
hence i can use interpolation polynomials, and i work it out that
f(x) = x^3 - x (it fits the sample well )
so f'(0)=-1.
doesn't it make sense?
thanks
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  #29  
Old 05-10-2006, 11:17 AM
sam_broverman sam_broverman is offline
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Sherri,

Your answer makes sense. My revision to the
question doesn't make sense. When I revised
the question, somehow I deleted the part of
the question indicating that it is a natural
cubic spline that is to be found. I'll revise
the revision shortly. Thanks for pointing that out.

Sam Broverman
2brove@rogers.com
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  #30  
Old 05-15-2006, 10:00 AM
sam_broverman sam_broverman is offline
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Default May 15 Question

You can find the question at:
http://www.sambroverman.com/may15c.pdf

Good luck to all taking the exam.
I will resume posting questions of the week in
a month or so.


Sam Broverman
2brove@rogers.com
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