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 Showing results 1 to 25 of 115 Search took 0.02 seconds. Search: Posts Made By: gauchodelpaso
 Yesterday, 04:28 PM Replies: 0 Views: 108 Posted By gauchodelpaso List of 115 more difficult C problems from SOA and CAS exam I've just wanted to share a list of problems where I found more difficulty during my study. Of course it's just my own appreciation. I found a total of 28 past exams from 1999 to 2007 from SOA and...
 06-06-2019, 10:50 AM Replies: 3 Views: 359 Posted By gauchodelpaso do you remember what were the tough questions... do you remember what were the tough questions about? MLE, Credibilty, newer stuff, odd subjects (KS, chi square, loglikelihood ratio)? Or was it lengthy resolution? I've been using just about...
 06-01-2019, 06:23 PM Replies: 1 Views: 236 Posted By gauchodelpaso Because it says so: Calculate the semiparametric... Because it says so: Calculate the semiparametric empirical Bayes estimate of the number of claims in Year 2 for the same policyholder. It may be confusing they use Bayes in the question. But it is...
 04-20-2019, 09:27 PM Replies: 3 Views: 595 Posted By gauchodelpaso OK, I take it! PM me with details, I normally use... OK, I take it! PM me with details, I normally use Paypal
 03-15-2019, 04:04 PM Replies: 8 Views: 1,422 Posted By gauchodelpaso just by looking at a Lee diagram, I can see they... just by looking at a Lee diagram, I can see they are not the same thing... LER is the ratio of 2 areas, fe is the ratio of a segment to the total area, and it's a proper distribution that adds up to...
 03-05-2019, 02:23 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso Yes Shunday, that's a good insight too. For this... Yes Shunday, that's a good insight too. For this case of comparing 2 distributions using the loglikelihood ratio (LLR?) or difference of loglikelihoods, I can see that the distribution used for Ho...
 03-05-2019, 09:20 AM Replies: 20 Views: 2,623 Posted By gauchodelpaso After all my ranting and a good night sleep,... After all my ranting and a good night sleep, first I apologize for my stupidity, and then I think I found my answer. What I believe is that if I run the experiment/sampling 10,000 times I will find...
 03-05-2019, 01:49 AM Replies: 20 Views: 2,623 Posted By gauchodelpaso Regarding your second comment, Mr Fossilized... Regarding your second comment, Mr Fossilized Swimmer (lol) and thank you for posting it, you mention: "If the underlying is truly continuous (see below), then significant at the 2.624% level means...
 03-05-2019, 01:39 AM Replies: 20 Views: 2,623 Posted By gauchodelpaso Thank you special swimmer! But I still don't get... Thank you special swimmer! But I still don't get even the example of the orange juice... you mention: "We then go and obtain some data: 57% of people in our survey (N= 100) drink orange juice...
 03-04-2019, 10:52 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso I am sorry for all the noise due to my lack of... I am sorry for all the noise due to my lack of understanding. I guess a possible explanation based on Colymbosathon ecplecticos answer would be that we may not know when we are wrong in the...
 03-04-2019, 10:33 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso 1) I understand that 1/40 = 2.5% and 1/20 = 5%. ... 1) I understand that 1/40 = 2.5% and 1/20 = 5%. 2) These are type of questions that compare 2 possible distributions, and the loglikelihood of given some samples , assume that the Ho is the...
 03-04-2019, 09:28 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso Thank you anyhow, for answering my questions,... Thank you anyhow, for answering my questions, that solely reflect my own level of incapacity.
 03-04-2019, 09:23 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso :confused: Why can't I get a straight answer to... :confused: Why can't I get a straight answer to my questions???? I give very specific examples, and I am answered with a different, or seemingly different, example... I know I may be dense... but how...
 03-04-2019, 09:15 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso I guess the jury may still be out among... I guess the jury may still be out among non-statisticians about reject or can't accept being different. To me it's the same thing "I can't accept somebody stealing" or "I reject somebody stealing"....
 03-04-2019, 07:31 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso so we accept(or can't reject) Ho at 2.5%... so we accept(or can't reject) Ho at 2.5% probability that may be true, but we reject at 5% because we can't have that level of significance with this data. Is that correct?
 03-04-2019, 07:14 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso Thank you Dr Weishaus again! Thank you Dr Weishaus again!
 03-03-2019, 04:34 PM Replies: 20 Views: 2,623 Posted By gauchodelpaso Well, here I am 12 years later... trying to... Well, here I am 12 years later... trying to understand the significance. And I've been 100 times with hypothesis testing and still don't get it right, must be my brain convolutions are convoluted......
 02-01-2019, 01:40 PM Replies: 11 Views: 1,607 Posted By gauchodelpaso I believe this case is the one where q is... I believe this case is the one where q is different for each Xi. It's important to know if it's the same for each or not. Like if some coins are weighted, then the q is not probably the same. For the...
 02-01-2019, 12:24 PM Replies: 11 Views: 1,607 Posted By gauchodelpaso Yes, Jim, I believe it was Exam C Spring 2007,... Yes, Jim, I believe it was Exam C Spring 2007, question 3, with a different beta. "You are given: (i) Conditional on Q = q, the random variables X1, X2 ,…, Xm are independent and follow a...
 02-01-2019, 01:05 AM Replies: 11 Views: 1,607 Posted By gauchodelpaso FINAL NOTE I doubt most what I had shown here,... FINAL NOTE I doubt most what I had shown here, so I will delete in my prior postings the questionable or confusing parts (like Z=20X). What I found was that this has been extensively discussed...
 01-31-2019, 11:04 AM Replies: 77 Views: 17,465 Posted By gauchodelpaso which edition are you using? I have 17th and skip... which edition are you using? I have 17th and skip 21-31 and 59-64. Which is 36? In my case it is 36 Hypothesis Tests: Graphic Comparison I am not skipping it. SOA 176 and 241 have p-p plots
 01-30-2019, 09:54 PM Replies: 11 Views: 1,607 Posted By gauchodelpaso I will attempt here to solve with more details,... I will attempt here to solve with more details, but I am sure I may be prone to errors, so please point them out to me. For the case of the sum of 20 iid Bernoulli that make one binomial...
 11-02-2018, 11:13 PM Replies: 0 Views: 1,006 Posted By gauchodelpaso STAM sample - difficulty of exercises I've just finished a first pass on the sample, up to #289. The rest (306 to 326) that are based on newer information did not seem that difficult and I will do a final summary when I get there. I...
 11-02-2018, 06:37 PM Replies: 0 Views: 932 Posted By gauchodelpaso Exam STAM Sample 285 tricky This is an exercise prepared for you to answer it wrongly. Here is the exercise "285. You are the producer for the television show Actuarial Idol. Each year, 1000 actuarial clubs audition for the...
 10-29-2018, 04:39 PM Replies: 0 Views: 689 Posted By gauchodelpaso Sample 242 - Range of possible solutions This sample exercise is not excessively difficult or with lengthy calculations, unless your brain is tired like mine. If you are pressed for time, one method is to eliminate unlikely answers. In this...
 Showing results 1 to 25 of 115

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