1. 10-14-2010
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Threads 1 to 15 of 15

Forum: FAQ

Common questions in statistics and probability.

  1. Sticky Thread Sticky: [F.A.Q.] list of questions

    Frequently Asked Questions Which statistics book should I get? How do I remove or deal with outliers? Why am I getting negative A.I.C....

    Started by TheEcologist‎, 10-19-2011 03:18 AM
    faq
    • Replies: 0
    • Views: 6,713
    10-19-2011, 03:18 AM Go to last post
  1. [FAQ] What is a p value?

    Preface The explanation below originally comes from this thread, with some modifications. It describes "conventional" null hypothesis significance...

    Started by CowboyBear‎, 09-23-2013 07:38 PM
    • Replies: 0
    • Views: 3,168
    09-23-2013, 07:38 PM Go to last post
  2. [FAQ] How to code nicely

    This section is meant to give some general help, as proper coding is vital to good science practise. There are many of types of errors and...

    Started by TheEcologist‎, 09-13-2013 05:09 PM
    faq, programing help
    • Replies: 0
    • Views: 788
    09-13-2013, 05:09 PM Go to last post
  3. [FAQ] What are independent / dependent variables?

    Variables A variable is an object, event, quantity, time period or basically something you are trying to measure. We can then further...

    Started by TheEcologist‎, 06-22-2013 08:10 AM
    dependent, faq, independent measures
    • Replies: 0
    • Views: 1,666
    06-22-2013, 08:10 AM Go to last post
  4. [FAQ] How do I remove or deal with outliers?

    How do I remove or deal with outliers? Removing outliers can cause your data to become more normal but contrary to what is sometimes...

    Started by TheEcologist‎, 10-19-2011 03:09 AM
    faq, outlier, outlier detection
    • Replies: 4
    • Views: 36,587
    10-04-2012, 08:56 AM Go to last post
  5. [FAQ] Which test should I use?

    This is often a dramatically difficult task for those who have little experience in statistics. Luckily there are some good online resources to help...

    Started by TheEcologist‎, 10-19-2011 03:01 AM
    faq, statistical methods, statistical tests
    • Replies: 2
    • Views: 7,298
    01-29-2012, 02:04 PM Go to last post
  6. [FAQ] Which statistics book should I get?

    Which statistics books should I get? Many of our members have there own favorite statistics books, but the best choice for you depends on your...

    Started by TheEcologist‎, 10-19-2011 03:11 AM
    faq, statistical learning, statistical texts
    • Replies: 0
    • Views: 2,621
    10-19-2011, 03:11 AM Go to last post
  7. [FAQ] Why am I getting negative A.I.C. scores?

    Why am I getting negative A.I.C. scores? It is correct that negative A.I.C. sent up red flags for you as it may tell you that something went wrong...

    Started by TheEcologist‎, 10-19-2011 03:04 AM
    a.i.c., aic log likelihood akaike, faq, negative a.i.c. values
    • Replies: 0
    • Views: 7,112
    10-19-2011, 03:04 AM Go to last post
  8. [FAQ] What statistical package is best?

    What statistical package is best? Unfortunately, there is no simple objective answer to this question. It all depends on your needs, skills and...

    Started by TheEcologist‎, 10-19-2011 03:03 AM
    faq, software, statistical software
    • Replies: 0
    • Views: 2,905
    10-19-2011, 03:03 AM Go to last post
  9. Hypothesis Testing

    Coming Soon....under construction.... Null and Alternative Hypotheses Most hypothesis testing situations start with a null hypothesis which...

    Started by JohnM‎, 03-16-2006 07:35 AM
    • Replies: 0
    • Views: 9,270
    03-16-2006, 07:35 AM Go to last post
  10. One-Way ANOVA (Analysis of Variance)

    A one-way ANOVA tests the hypothesis that all of the groups are equal, that is, the samples come from the same population. Ho: mu(1) = mu(2) =...

    Started by JohnM‎, 11-29-2005 03:01 PM
    • Replies: 0
    • Views: 10,814
    11-29-2005, 03:01 PM Go to last post
  11. Computing Confidence Intervals

    Before we get into examples of the confidence interval, a short comment about interpreting what a confidence interval is.....it is not to be confused...

    Started by JohnM‎, 11-17-2005 09:43 PM
    • Replies: 0
    • Views: 28,201
    11-17-2005, 09:43 PM Go to last post
  12. Chi-Squared Tests

    For both examples here, we will need to compute a chi-square statistic: X^2 = summation of where: O = number of oberved frequencies E =...

    Started by JohnM‎, 11-12-2005 07:11 PM
    • Replies: 0
    • Views: 2,059
    11-12-2005, 07:11 PM Go to last post
  13. Determining Sample Size

    1. When you are asked to determine the minimum sample size required to estimate a population mean within a certain margin of error n >= ((Za +...

    Started by JohnM‎, 11-12-2005 08:01 AM
    • Replies: 0
    • Views: 25,086
    11-12-2005, 08:01 AM Go to last post
  14. The Vaunted Normal Distribution

    Whenever you are asked to determine the percentage of the area under the normal curve, first determine what type of question you are being asked: ...

    Started by JohnM‎, 11-01-2005 03:23 PM
    • Replies: 0
    • Views: 5,266
    11-01-2005, 03:23 PM Go to last post
  15. Hypothesis Testing - Population Mean

    A restaurant claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1...

    Started by quark‎, 10-31-2005 10:20 PM
    • Replies: 0
    • Views: 18,928
    10-31-2005, 10:20 PM Go to last post

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