1. Announcement:
    Want access to a chatbox?
    Dason ‎(Devorador de queso)
    05-10-2017
    Views:
    1,960
+ Post New Thread
Page 15 of 294 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 65 115 ... LastLast
Threads 841 to 900 of 17595

Forum: Statistics

Statistics course and homework discussion. Elementary statistics.

  1. Arrow Sticky Thread Sticky: We only provide homework help to those who show effort

    Welcome to Talk Stats Forum. In order to keep homework help effective and efficient, we request all members to abide by these guidelines: 1)...

    Started by quark‎, 09-30-2005 09:44 AM
    • Replies: 0
    • Views: 67,061
    09-30-2005, 09:44 AM Go to last post
  2. Sticky Thread Sticky: Forum Guidelines: Smart posting behavior pays off

    Welcome to talkstats.com, the place for statistics help. This is a guideline for people who want to ask a question on this forum and value a...

    Started by TheEcologist‎, 11-27-2010 12:13 PM
    • Replies: 1
    • Views: 197,315
    07-16-2014, 11:01 AM Go to last post
  1. How to handle the result? (highly skewed)

    Hello! I am researching the association between depression and sugar intake levels. Could anyone please let me know how to deal with highly...

    Started by andre123‎, 07-03-2013 09:23 AM
    • Replies: 2
    • Views: 1,755
    07-03-2013, 10:20 AM Go to last post
  2. Percentile

    Hello! Anyone please let me know how to report percentile in APA format please (I cannot find it!) ? Also, if 95th percentile of vitamin C...

    Started by andre123‎, 07-12-2013 05:34 PM
    • Replies: 0
    • Views: 2,027
    07-12-2013, 05:34 PM Go to last post
  3. independent or related sample?

    Hi, I am confusing what is independent/related sample... I know this is basic but if anyone can tell me please! I understand that related sample...

    Started by andre123‎, 07-13-2013 05:47 PM
    • Replies: 0
    • Views: 1,746
    07-13-2013, 05:47 PM Go to last post
  4. Cool Survival Analysis with two types of event

    Hi, guys! I'm looking for an example of kaplan meier with two different types of event, e.g. tumor progression or death as outcomes. Somebody knows...

    Started by andre1983‎, 08-16-2017 12:31 PM
    survival analysis
    • Replies: 2
    • Views: 308
    08-16-2017, 02:15 PM Go to last post
  5. Relationship satisfaction

    Some friends of mine asked me to help them with an assignment, since I study Math. Unfortunately, Statistics is not really my cup of tea and it's...

    Started by andrea.gagna‎, 10-06-2013 08:17 PM
    • Replies: 1
    • Views: 831
    10-06-2013, 09:30 PM Go to last post
  6. Failure and Factor Analysis

    I am analyzing failures on cars. I am not trying to find which is the root cause of the problem (for now), I just want to verify if an specific...

    Started by andreacmt‎, 07-11-2013 10:16 AM
    • Replies: 1
    • Views: 984
    07-11-2013, 10:34 AM Go to last post
  7. Grouping/indexing variables

    Me and a fellow student are working on our master thesis and have a statistic related question that we were hoping you could help us with? Our...

    Started by Andreashn‎, 06-17-2015 08:50 AM
    • Replies: 0
    • Views: 846
    06-17-2015, 08:50 AM Go to last post
  8. Statistics without individual subjects

    Hi all My situation is that I'm going to run an experiment on food behavior. I have a canteen with a buffet available and I'm going to do a...

    Started by AndreasRJ‎, 01-28-2016 05:43 AM
    • Replies: 0
    • Views: 1,034
    01-28-2016, 05:43 AM Go to last post
  9. contingency table

    Hi! Can anyone help me with the following problem: I had to do a contingency table based on the GDP and exports of some contries and after that to...

    Started by andreea_ni‎, 05-02-2012 09:37 AM
    • Replies: 0
    • Views: 1,834
    05-02-2012, 09:37 AM Go to last post
  10. Post outliers analysis

    Dear All, I have a random single variable with row more than 1000. So, what is suitable methods to use it? Could explain about Grubbs' Test and I...

    Started by andreja‎, 09-22-2014 07:23 AM
    • Replies: 3
    • Views: 2,720
    09-25-2014, 02:16 AM Go to last post
  11. Lightbulb Inverse of the Standard Normal Cumulative Distribution Calculation

    Hi Everyone, I'm trying to verify the calculation for the Inverse Cumulative Standard Normal Distribution Function represented by the Excel...

    Started by andreja‎, 09-25-2014 02:13 AM
    • Replies: 8
    • Views: 7,707
    10-02-2014, 10:39 AM Go to last post
  12. I need help!

    Hi everyone, Here is my situation: I have never in my life taken a statistics course. I have an exam for a position with the state of CA on 10/18....

    Started by Andrew‎, 10-16-2006 03:53 PM
    • Replies: 0
    • Views: 1,874
    10-16-2006, 03:53 PM Go to last post
  13. Comparing mean of 3 samples

    Hi I wonder if anybody would be so kind as to help me with a problem. I am a paediatrician looking at weight change after 12 months of treatment...

    Started by Andrew!‎, 09-10-2008 05:02 PM
    • Replies: 5
    • Views: 16,643
    09-16-2008, 03:13 AM Go to last post
  14. Medical statistics

    Hi I am a paediatrician looking at weight gain in children who take a particular drug for an inflammatory arthritis. (BMI = body mass index) ...

    Started by Andrew!‎, 09-19-2008 10:10 AM
    • Replies: 2
    • Views: 4,249
    09-20-2008, 12:48 AM Go to last post
  15. Stats Novice: Help finding if 1 value affects another

    Apologies I have learning trouble and stats are a particularly weak point. Im doing research on 10 animals species, and their conservation status...

    Started by Andrew182‎, 04-30-2017 01:05 PM
    dependant or independant, relevant, stats, test, what test
    • Replies: 0
    • Views: 831
    04-30-2017, 01:05 PM Go to last post
  16. Confidence intervals on Binomially-distributed variable

    I have some confusion about confidence intervals, which arose when working with a Binomially-distributed variable, so I will use that distribution to...

    Started by andrew732‎, 10-24-2013 10:45 AM
    • Replies: 6
    • Views: 1,896
    10-26-2013, 09:13 AM Go to last post
  17. Simple question, i think

    Hi I have several sets of data with ratings from 1-5 with 1 being the worst, 5 being the best. I am wondering what is the best/simplest way to...

    Started by andrew9900‎, 05-26-2009 05:26 AM
    • Replies: 4
    • Views: 1,994
    05-27-2009, 04:32 PM Go to last post
  18. Simple calculation needed, please

    Hi, Have an easy one i think, just can't get my head around it. I have two sets of data, one set that is a likert scale from 1 to 5 and the other...

    Started by andrewcarse‎, 09-18-2008 12:34 PM
    • Replies: 1
    • Views: 1,932
    09-18-2008, 12:58 PM Go to last post
  19. Backing out standard errors on regression betas from Least Significant Differences

    I'm trying to do a meta-regression analysis on the effect of a certain treatment on crop yields. There are tons of papers reporting effects, and I...

    Started by andrewcd‎, 02-24-2012 01:17 PM
    • Replies: 2
    • Views: 1,949
    02-24-2012, 02:09 PM Go to last post
  20. Test for two groups in one sample

    Hi All, I've been trying to find a test that would identify whether my sample is actually two separate groups as opposed to a normal group. I'm...

    Started by AndrewDick‎, 08-24-2009 09:17 PM
    • Replies: 0
    • Views: 1,347
    08-24-2009, 09:17 PM Go to last post
  21. Significance between multiple groups

    Hi Guys, I have an okay understanding of statistics but struggled with this one as it is not something I have done before, any help or pointers...

    Started by AndrewDus‎, 12-30-2014 07:56 AM
    significance testing
    • Replies: 1
    • Views: 1,095
    12-30-2014, 08:58 AM Go to last post
  22. Help needed on Histogram

    How do i find the median if the median falls in 2 different classes? e.g Range / Freq 0-200 / 0 200-400 / 25 400-500 / 15 500-600 / 5...

    Started by andrewhzh1‎, 12-16-2010 08:47 AM
    • Replies: 1
    • Views: 2,534
    12-16-2010, 01:52 PM Go to last post
  23. Which test?

    I hope people can help. I have an ingredient supplier who wishes to use a calculated value on the CofA rather than a test value. We have an...

    Started by AndrewKennett‎, 06-25-2012 06:27 PM
    • Replies: 1
    • Views: 1,936
    06-26-2012, 07:04 AM Go to last post
  24. Hypothesis testing help

    Can anyone help me with hypothesis testing? I am confused at how to approach these problems. An example of a problem I have is.... A single...

    Started by andrewl92‎, 11-20-2011 10:53 PM
    • Replies: 2
    • Views: 2,548
    11-26-2011, 02:38 PM Go to last post
  25. How to analyze a dependent variable which is an array?

    Hello, In a sample of around 20 participants, each of them delivered 3 hierarchies (or arrays) produced by using 3 different approaches (A, B and...

    Started by andreww‎, 10-25-2011 03:50 PM
    • Replies: 3
    • Views: 1,812
    10-31-2011, 06:26 AM Go to last post
  26. minimum sample size for mean

    Am I doing this right? :) I am trying to calculate the average value of a call to a non-profit call center by sampling the audio recordings. Each...

    Started by andrewz‎, 12-09-2010 07:18 PM
    • Replies: 2
    • Views: 6,017
    12-27-2010, 04:56 PM Go to last post
  27. ikelihood

    hello, I have a question about the topic ikelihood. In the literature, the likelihood function is used for the estimation of the parameters, and in...

    Started by andrew_fg‎, 09-12-2016 05:12 AM
    ikelihood
    • Replies: 1
    • Views: 1,211
    09-12-2016, 05:25 PM Go to last post
  28. Statistics question

    Can someone help with these questions: 4. In a survey, some of the questions concern sensitive issues (e.g., income, drug use, sexual...

    Started by Andrey Ivanov‎, 12-11-2006 03:37 PM
    • Replies: 2
    • Views: 2,647
    12-12-2006, 12:45 PM Go to last post
  29. Partial correlation

    Hey Can I use partial correlation in SPSS if my variables are violating normality of distribution? Thanks!

    Started by andrilnc‎, 07-07-2012 10:42 AM
    • Replies: 0
    • Views: 1,456
    07-07-2012, 10:42 AM Go to last post
  30. 2x2 repeated measures factorial design for non parametric data?

    Hi I have a 2x2 repeated measures factorial design, variables: (length- short/long, complexity- low/high) resulting in four conditions. I have four...

    Started by andrilnc‎, 07-08-2012 06:12 AM
    • Replies: 0
    • Views: 3,513
    07-08-2012, 06:12 AM Go to last post
  31. Smile Binary depedent variable in linear regression: need your helps!

    y i =a+bD i +u i ,i=1,,n (regression equation) Always thank you for your helps! I have a question about binary dependent variables in...

    Started by androman‎, 10-12-2013 09:38 AM
    binary dependent variable, linear regression
    • Replies: 3
    • Views: 1,769
    10-12-2013, 10:02 AM Go to last post
  32. Thumbs up Comparing PCA to multiple regression.

    Dear all, I would appreciate any help on this question. I have been asked to compare the results of PCA to multiple regression. I ve been given...

    Started by Andromedios‎, 01-11-2014 12:47 PM
    comparing, dimension reduction, multiple regression, pca
    • Replies: 1
    • Views: 1,000
    01-13-2014, 10:56 PM Go to last post
  33. p-values from Monte-Carlo

    I have data from two different groups and they both have 19 subjects. I find a statistical measure for the two groups and claim that one is greater...

    Started by andru4u‎, 05-20-2008 04:34 PM
    • Replies: 11
    • Views: 3,723
    05-21-2008, 06:42 PM Go to last post
  34. Testing is a sample has been rigged??

    Hello All, This is my first post so please be gentle, I did applied stats 22 years ago as part of my Physics degree but that was, well, 22 years...

    Started by Andy Carr‎, 10-17-2014 03:24 AM
    sample rigging random
    • Replies: 3
    • Views: 1,407
    10-17-2014, 02:37 PM Go to last post
  35. Post help please: did our project have any statistical effect

    Hi folks, I work in Waste Management. my colleagues did a small project in an area to educate people about food waste. they hoped the project...

    Started by andy warner‎, 11-15-2013 05:51 AM
    • Replies: 5
    • Views: 1,945
    11-19-2013, 05:03 AM Go to last post
  36. Dissertation help

    Hi - i have to analyse the data i have collected for my dissertation and was hoping someone could give me a pointer in the right direction. my...

    Started by andy-mack‎, 02-28-2008 07:56 AM
    • Replies: 6
    • Views: 3,189
    02-28-2008, 12:08 PM Go to last post
  37. Dummy variables and their interaction (urgent help required)

    Dear All, I have a question concerning the dummy and dummy interactions. Firm Performance is a continuous variable (variable of interest) and...

    Started by andy1234‎, 09-29-2017 10:29 PM
    dummy variable
    • Replies: 3
    • Views: 165
    09-30-2017, 03:01 AM Go to last post
  38. Statistical power problem

    I have been working on a statistics problem and I think I have worked it out but I would like someone to conform it. Problem An outcome has a 25%...

    Started by andy2001‎, 01-16-2009 04:18 PM
    • Replies: 0
    • Views: 3,056
    01-16-2009, 04:18 PM Go to last post
  39. Are standard deviation and z scores distorted with small samples?

    If the standard deviation of a coin toss is one based on heads +1 tails -1.using population standard deviation. That should give a z score of 1 for a...

    Started by andy2001‎, 01-28-2009 12:55 PM
    • Replies: 4
    • Views: 5,089
    01-28-2009, 01:35 PM Go to last post
  40. Z- and T-Scores. Why bother?!

    If anyone could help a complete statistical ignoramus out, it would be much appreciated: I am teaching a package for the Armed Forces which has...

    Started by AndyatHalton‎, 12-16-2009 03:58 AM
    • Replies: 1
    • Views: 2,229
    12-16-2009, 04:38 AM Go to last post
  41. Determine sample size and frequency for long term permanent monitoring monitoring

    Hello, I have five years of annual plant count census data from 214 permanent sampling plots. These are complete counts of a single plant species...

    Started by AndyBid‎, 10-08-2015 03:20 PM
    • Replies: 0
    • Views: 1,040
    10-08-2015, 03:20 PM Go to last post
  42. Need to aggregate t-test stats

    Here's the setup: My main goal is to "bless" a new database (db) such that "blessing" means that the new database isn't "statistically different"...

    Started by AndyD‎, 12-27-2007 06:23 PM
    • Replies: 1
    • Views: 2,969
    12-28-2007, 07:00 AM Go to last post
  43. Creating a grouping variable

    I am trying to create a grouping variable (1, 2, 3, or 4) from the median split of two other variables (job and life satisfaction). So the new...

    Started by andyksubjj‎, 08-13-2007 01:44 PM
    • Replies: 4
    • Views: 6,941
    08-15-2007, 07:10 PM Go to last post
  44. Proper method for selecting two-dimensional data of high "agreement"?

    Hello, I have two sets of data which I have plotted against each other. I wish to select the points that have the highest values from both sets...

    Started by AndyPL22‎, 09-16-2013 10:03 PM
    • Replies: 2
    • Views: 1,194
    09-16-2013, 10:13 PM Go to last post
  45. temperature data test advice

    Hi there What would be the correct test for the following situation. I have 3 temperature monitors measuring the air temperature in different...

    Started by andyspeak‎, 07-31-2012 10:52 AM
    • Replies: 0
    • Views: 1,780
    07-31-2012, 10:52 AM Go to last post
  46. time series data problems

    Hello My data consists of repeated measurements of temperature, every hour, over a year. It is not normal. There are three sets of measurements...

    Started by andyspeak‎, 08-17-2012 06:29 AM
    • Replies: 1
    • Views: 1,281
    08-17-2012, 08:26 AM Go to last post
  47. half data is normal - transform for a t-test?

    I have rainwater runoff retention data for a green roof and a concrete roof for 70 separate rain events. I want to compare them using a paired...

    Started by andyspeak‎, 12-26-2012 06:52 AM
    • Replies: 2
    • Views: 1,466
    12-28-2012, 09:47 AM Go to last post
  48. Species diversity index without count data

    Hello I want to calculate plant species diversity (Shannon wiener index) for some land parcels that I have sampled but I dont have counts of...

    Started by andyspeak‎, 08-05-2014 01:59 PM
    • Replies: 0
    • Views: 1,145
    08-05-2014, 01:59 PM Go to last post
  49. Emergency! My Statistics Exam. Please help me :(((

    Hi everyone. I am a new member of this great forum. I have some question sheets of my exam and I can't answer them. My exam will be taken on...

    Started by andytaker‎, 07-08-2017 02:17 PM
    • Replies: 1
    • Views: 548
    07-09-2017, 04:54 PM Go to last post
  50. Lightbulb Transformations

    I have two datasets, before and after the application of a treatment. The treatment is theorised to produce an increase in "factor x", and difference...

    Started by andyw‎, 12-09-2011 11:13 AM
    log, negatives, transformation
    • Replies: 3
    • Views: 3,461
    12-09-2011, 01:51 PM Go to last post
  51. Lightbulb Bonferroni correction in GLMs

    I'm running a series of General Linear Models, attempting to explain factor x with 6 other factors; individually, all 2-way and all 3-way. Due to...

    Started by andyw‎, 02-02-2012 06:57 AM
    bonferroni, corrections, glm, linear models, significance
    • Replies: 1
    • Views: 1,904
    02-02-2012, 07:00 AM Go to last post
  52. GLM output

    I am conducting a series of GLMs in order to find the minimum adequate model, the largest model in which all factors are significant. In some of my...

    Started by andyw‎, 02-06-2012 12:06 PM
    error, glm, linear, linear modelling
    • Replies: 3
    • Views: 2,842
    02-07-2012, 06:44 AM Go to last post
  53. Interactive terms

    Afternoon all, I've been running some GLMs using a stepwise backwards deletion routine (main effects, 2 way, 3 way), deleting the least...

    Started by andyw‎, 03-09-2012 11:21 AM
    glm, interactive terms
    • Replies: 1
    • Views: 1,857
    03-09-2012, 09:01 PM Go to last post
  54. I have an actual and estimated time series to compare - linear regression ok?

    I'm pretty new to this but trying to figure out which estimated time series does a better job of predicting what the actuals are. I have two...

    Started by andy_d314‎, 02-23-2015 11:01 PM
    • Replies: 0
    • Views: 1,009
    02-23-2015, 11:01 PM Go to last post
  55. comparing score? wilcoxon signed rank test

    hey guys a little bit of question from me about test used for comparing score my data is normally distribute but i use Wilcoxon to compare...

    Started by Andy_G‎, 02-06-2013 04:08 AM
    • Replies: 2
    • Views: 1,320
    02-06-2013, 11:44 AM Go to last post
  56. Novice seeking advice.

    Hello I've produced a spreadsheet with the intention of forecasting the odds for soccer games in the Home,draw,away market (1X2). I produce...

    Started by Andy_Lucian‎, 06-15-2010 05:05 AM
    • Replies: 2
    • Views: 2,851
    06-15-2010, 08:40 AM Go to last post
  57. Statistical Significance

    What is it that makes a change statistically significant? Is this relationship solely based on whether the allowance is larger than the value being...

    Started by anemro‎, 07-26-2008 10:55 PM
    • Replies: 0
    • Views: 2,734
    07-26-2008, 10:55 PM Go to last post
  58. Standard Deviation of a Weighted Mean

    Does anyone know how to calculate the standard deviation of a weighted mean? v p(v) 0 0.3 1 0.4 2 0.3 I need to calculate the...

    Started by anemro‎, 07-26-2008 10:57 PM
    • Replies: 6
    • Views: 15,199
    07-28-2008, 01:41 PM Go to last post
  59. Probability Question

    I am having trouble with this question I don't really know how to go about it. Yesterday's production of refrigerator compressors got out of...

    Started by anemro‎, 07-26-2008 11:07 PM
    • Replies: 2
    • Views: 2,010
    07-27-2008, 12:56 PM Go to last post
  60. Anova Homework Problem

    I have this homework that gives the mean of each of the treatments but no data with it. I just a little confused on how I would calculate the SStreat...

    Started by ang6705‎, 11-16-2010 07:12 PM
    • Replies: 1
    • Views: 2,775
    11-17-2010, 12:28 AM Go to last post

+ Post New Thread
Page 15 of 294 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 65 115 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 300 views
Hot thread with unread posts
More than 15 replies or 300 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats