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  1. #71
    Player Bumbeen's Avatar
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    Apr 2011
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    Bumbeen
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    Valefor
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    RDM Lv 1
    Quote Originally Posted by MarkovChain View Post
    Nope , especially with different Treasure Hunter procs and different NM mixed. It doesn't excude 25% for HQ king so far. 10% or 30% is a lot different and 20 sample size cannot distingish this.
    No 20 samples cannot distinguish between 10% or 30%, but that still gives you a good idea of what the drop rate is. As in it's less than 30%, at least. 3/22 in fact is more like +-14% so sub 28% drop rate is almost certain. I don't see how that isn't useful information.
    (2)

  2. #72
    Player wish12oz's Avatar
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    Mar 2011
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    Quote Originally Posted by Bumbeen View Post
    No 20 samples cannot distinguish between 10% or 30%, but that still gives you a good idea of what the drop rate is. As in it's less than 30%, at least. 3/22 in fact is more like +-14% so sub 28% drop rate is almost certain. I don't see how that isn't useful information.
    Especially considering we have much more then a sample size of 20? I saw 189.
    (3)

    http://www.twitch.tv/wish12oz
    http://www.youtube.com/user/r5n/videos

  3. #73
    Player Nynja's Avatar
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    Mar 2011
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    Character
    Nynja
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    Carbuncle
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    THF Lv 99
    189 isnt enoug, it must be 1000!!!!!!
    (6)

  4. #74
    Player Byrth's Avatar
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    Mar 2011
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    Character
    Byrth
    World
    Lakshmi
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    DNC Lv 99
    Sorry, I basically read the first few posts and wrote that. Typically the value you multiply the assumed standard deviation by scales with sample size (so lower N or degrees of freedom = higher number). I used 1.96, which is the generic "Hey, you're above 30!" number. There are also some tests that people simply say are not valid until you have >30 sample size.

    I've personally not had much issues with that equation I'm using giving very inaccurate results at low N (apart from where p is very close to 100% or 0%). It gave a huge window (almost 1/3 of the probability space), which is appropriate for a low N.
    (3)

  5. #75
    Player Nynja's Avatar
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    Mar 2011
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    Character
    Nynja
    World
    Carbuncle
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    THF Lv 99
    http://americanresearchgroup.com/moe.html

    I used that, presuming Population Size would be the amount of "accepted data" to tell whats accurate, I used 1000, and threw in our data of 189 samples, which gave a margin of error of 6.42%? Did I do that right?

    Well, throwing around random population size numbers didnt change much, its always around the 5-7% margin of error range.
    (3)

  6. #76
    Player Byrth's Avatar
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    Mar 2011
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    Character
    Byrth
    World
    Lakshmi
    Main Class
    DNC Lv 99
    For a two-state event (it happens or it doesn't), I think the binomial distribution error thing is best.
    X = how often something happened
    N = sample size

    X/N +/- (1.96*SQRT( (1 - X/N) * X / N^2) )

    or, when p is the ratio:
    p +/- (1.96*SQRT( (1-p)*p/N) )

    (I would just do it for you, but I can't find the 189 you're talking about)
    (2)

  7. #77
    Player Nynja's Avatar
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    Mar 2011
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    Nynja
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    Carbuncle
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    THF Lv 99
    Quote Originally Posted by Nynja View Post
    Updated loot counts, separated by NM, all presumed with TH.

    Adamantoise:
    Me 2/6, Gwynplaine 5/10, Karb 0/3, Insaniac 0/4
    7/23

    Fafnir:
    Me 0/3 BG 0/3, Rak 1/8, Karb 1/3, Wiki 1/32, Insaniac 0/11 Gwyn 0/7 Wish12fraand 1/17 Wish12 0/12
    4/96

    Behemoth:
    Me 0/4, BG 0/3, Rak 1/8, Karb 0/4, Saca 0/8, Wiki 3/26, Insaniac 1/9 Wish12 0/8
    5/70
    thats the 189
    (2)

  8. #78
    Player Byrth's Avatar
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    Character
    Byrth
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    Lakshmi
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    DNC Lv 99
    I get 8.5% +/- 4%, so likely 10%. This assumes all three populations have the same probability.
    (2)

  9. #79
    Player Karbuncle's Avatar
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    Mar 2011
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    The real problem is that "10%" is with TH8~+ on most all of those kills.

    Thats some pretty shitty Drop rate D: Would anyone complain if they upped it to ~20% >_>?
    (4)

  10. #80
    Player Raksha's Avatar
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    Mar 2011
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    Character
    Raksha
    World
    Lakshmi
    Main Class
    SCH Lv 99
    Quote Originally Posted by Byrth View Post
    I get 8.5% +/- 4%, so likely 10%. This assumes all three populations have the same probability.
    So 990 k.seals on average to pop HQ king?

    That d.ring is gonna take a while >_<.
    (2)

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