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hamza_b23

  • 3 years ago

does anyone have basic idea of statistics?

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  1. hamza_b23
    • 3 years ago
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    I have this table Puppy # Weight 1 16 2 46 3 34 4 31 5 21 6 26 7 22 Sum 196

  2. hamza_b23
    • 3 years ago
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    and the question states d) Would it be reasonable to state that this litter contained two “unusual” puppies; i.e., a runt and a giant? Why or why not? I know my mean is 28, S.D. is 9.27 and my 95% C.I is (9.83, 46.17) but dont know what this question is asking

  3. hamza_b23
    • 3 years ago
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    and also should i use sample S.D. or population S.D.

  4. hamza_b23
    • 3 years ago
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    what i used was population S.D

  5. KingGeorge
    • 3 years ago
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    I think population is the correct one. Basically, I think the question is asking if you have two outliers in your data. In particular, you have a puppy that weighs 16, and one that weighs 46. Using your S.D. and CI, I think you're supposed to figure out if those puppies are "unusual."

  6. hamza_b23
    • 3 years ago
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    but if it lies in the CI can i say its normal or do i have to do some tests?

  7. KingGeorge
    • 3 years ago
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    I'm honestly not sure. If it lies in the CI though, I would tend to think it's still normal. But I'm not sure. It's been quite a while since I've had any statistics.

  8. hamza_b23
    • 3 years ago
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    yeah same lol alright ill keep searching on the web :)

  9. KingGeorge
    • 3 years ago
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    Good luck!

  10. hamza_b23
    • 3 years ago
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    @satellite73

  11. UnkleRhaukus
    • 3 years ago
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    how may standard deviation away, are the outliers from the mean ?

  12. hamza_b23
    • 3 years ago
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    what do you mean by that ?

  13. hamza_b23
    • 3 years ago
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    like i dont know what that question means. what i wrote is its not reasonable since all those values lie in the confidence intevral so its not unsual i dont know if that is right

  14. UnkleRhaukus
    • 3 years ago
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    |dw:1361763918248:dw|

  15. UnkleRhaukus
    • 3 years ago
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    most of the data is within one standard deviation of the mean

  16. hamza_b23
    • 3 years ago
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    so can i say everything is reasonable

  17. hamza_b23
    • 3 years ago
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    or should i argue puppy with weight 16 and 46 are unsual

  18. UnkleRhaukus
    • 3 years ago
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    i reckon those two are unusual

  19. hamza_b23
    • 3 years ago
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    true thanks a lot :)

  20. hamza_b23
    • 3 years ago
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    I have another question would you just tell me if i am doing it right

  21. UnkleRhaukus
    • 3 years ago
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    ok

  22. hamza_b23
    • 3 years ago
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    well its on another site if thats okay

  23. hamza_b23
    • 3 years ago
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    i did all my calculations but i know my last question is wrong cuz i got a small n value

  24. hamza_b23
    • 3 years ago
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    http://stats.stackexchange.com/questions/50779/calculating-the-n-value#comment99361_50779

  25. hamza_b23
    • 3 years ago
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    im confident a is right, b is 95% right and i know c is wrong lol

  26. UnkleRhaukus
    • 3 years ago
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    i think your are on the right track for b, and im not sure about c , sorry

  27. hamza_b23
    • 3 years ago
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    oo its alright, and I just got one more probability question and thats it for today if you dont mind

  28. hamza_b23
    • 3 years ago
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    http://stats.stackexchange.com/questions/50784/using-the-bayes-theorem i dont know if i got the probabilities wrong from the question but dont know

  29. UnkleRhaukus
    • 3 years ago
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    im sorry i cant be more helpful , maybe post your question here http://openstudy.com/study#/groups/Statistics

  30. seiga
    • 3 years ago
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    you have a puppy that weighs 16, and one that weighs 46. Using your S.D. and CI, I think you're supposed to figuure out if those puppies are unusual.

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