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Forum: Statistics

Statistics course and homework discussion. Elementary statistics.

  1. 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: 196,871
    07-16-2014, 11:01 AM Go to last post
  2. 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: 66,817
    09-30-2005, 09:44 AM Go to last post
  1. Analysis for Yes/No type of questions

    Hi, I just started using statistics at work and the analysis related to Customer Experience survey is raising lot of questions. The data contains...

    Started by statsuser‎, 11-19-2013 01:18 AM
    • Replies: 1
    • Views: 2,696
    11-19-2013, 02:37 AM Go to last post
  2. Analysis headache: Hi, first timer and a little confused

    Hi there I hope you can help. I have done so much reading I feel I have tied myself in knots. I'm looking to find out the statistical test I need to...

    Started by JM80‎, 03-16-2014 05:46 AM
    • Replies: 0
    • Views: 1,212
    03-16-2014, 05:46 AM Go to last post
  3. Cool analysis help

    I have some data that I'm trying to run some analysis on, but I can't figure out which test will be the best. I have both interval and nominal...

    Started by Marena‎, 11-25-2006 12:53 AM
    • Replies: 1
    • Views: 1,855
    11-25-2006, 12:28 PM Go to last post
  4. Analysis help

    I've been asked to prepare an analysis of about 5,000 customer records. These customers have an assigned decile, which is of utmost interest. I...

    Started by ppace60657‎, 02-05-2009 12:09 PM
    • Replies: 0
    • Views: 1,770
    02-05-2009, 12:09 PM Go to last post
  5. Thumbs up Analysis of Categorical Variables

    Dear Member(s), I work in a different kind of field i.e. agriculture in general and Soil Science in particular. I have a good data set that...

    Started by dvknrao‎, 10-04-2013 02:13 AM
    • Replies: 5
    • Views: 1,724
    12-14-2013, 04:45 AM Go to last post
  6. analysis of classic Battleship game

    Hi, This must be a classic statistical problem, but I suspect I am just not using the standard name for the problem. I would like to find a...

    Started by albuck‎, 01-05-2009 05:43 PM
    • Replies: 1
    • Views: 3,243
    01-07-2009, 12:18 AM Go to last post
  7. Analysis of Conference Speaker Scores

    Hi I work for a conference company and each of the speakers that present for us get scored from 1 to 5 (bad to excellent) (I also have similar...

    Started by dazek‎, 12-09-2010 12:10 PM
    • Replies: 5
    • Views: 2,917
    12-21-2010, 01:58 PM Go to last post
  8. Analysis of correctness of answers

    Hi! I have another question. My participants had to perform 32 tasks (8 tasks in all four conditions), and now I want to analyse whether there are...

    Started by Janka‎, 05-02-2006 03:23 AM
    • Replies: 1
    • Views: 2,127
    05-02-2006, 11:06 AM Go to last post
  9. Analysis of Counted Set of Data

    Gud Mrng Friends, well i am trying to analyze the data set which contains counted values per day for 15 consecutive days for four different groups...

    Started by bjslubana‎, 06-16-2012 12:34 AM
    • Replies: 0
    • Views: 847
    06-16-2012, 12:34 AM Go to last post
  10. Question Analysis of covariance (ANCOVA)

    In my research in literature, I read that categorical covariates (eg. sex, race) can be adjusted in the analysis of covariance (ANCOVA), but the...

    Started by Cleliani da Silva‎, 05-04-2016 02:28 PM
    • Replies: 1
    • Views: 1,845
    05-05-2016, 07:11 AM Go to last post
  11. Analysis of data - how to find the most relevant factors

    Solved. Sorry... You can delete it.

    Started by skw‎, 02-25-2017 05:33 PM
    data, data analysis, statistic
    • Replies: 0
    • Views: 1,395
    02-25-2017, 05:33 PM Go to last post
  12. Analysis of Data assistance

    i will try and explain briefly my project and what i am looking to analyse. I have undertaken a research analysis of a particular investigation...

    Started by saritbadianinehal‎, 11-06-2010 12:19 PM
    • Replies: 0
    • Views: 1,913
    11-06-2010, 12:19 PM Go to last post
  13. Analysis of data with a small population

    Hello, We did some research regarding a very small population. Eight companies were involved. Its a small number, but we believe that sample...

    Started by nrb10@psu.edu‎, 11-19-2009 09:01 AM
    • Replies: 1
    • Views: 6,402
    11-26-2009, 09:39 AM Go to last post
  14. Analysis of data, multi individual, multi experiment?

    Hi, I'm trying to analyse some data to find correlations, and the significance of those correlations and could do with a little help. Basic...

    Started by RobertH‎, 08-27-2008 05:52 PM
    • Replies: 1
    • Views: 3,123
    08-27-2008, 06:08 PM Go to last post
  15. Analysis of Entomological Findings Help

    Solved....

    Started by Forensic Entomologist‎, 02-03-2012 01:51 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 4,123
    02-03-2012, 05:13 PM Go to last post
  16. Analysis of Likert Data

    Hi there, I'm looking for help analyzing survey data measuring perceptions of importance and success using likert scales. I used a 5-point...

    Started by phibi25‎, 01-07-2011 03:13 PM
    • Replies: 1
    • Views: 2,939
    01-07-2011, 03:18 PM Go to last post
  17. Analysis of Likert Scale data

    Hi All, I am doing research on expertise and had respondents use 7 point likert scales to provide answers to practical questions. I'm going to...

    Started by Servellen‎, 04-03-2011 07:59 AM
    • Replies: 0
    • Views: 7,973
    04-03-2011, 07:59 AM Go to last post
  18. Red face Analysis of Multiple Sites (vegetation) with multiple categories/ranks - HELP!

    I need some advice (and note, I am NOT a stats pro, excel yes, but have only used SPSS and R once) Short story is, I have done a vegetation survey...

    Started by cbrowne‎, 09-06-2013 02:17 AM
    • Replies: 0
    • Views: 1,081
    09-06-2013, 02:17 AM Go to last post
  19. Smile Analysis of my results

    Hi, I have just finished a research where I performed a comparison of the latest Australian healthcare reforms against the 123 NHHRC...

    Started by drsayanta‎, 08-22-2010 10:38 AM
    • Replies: 0
    • Views: 1,941
    08-22-2010, 10:38 AM Go to last post
  20. Analysis of possible variables causing incorrect test results (false-positive etc)

    Dear geniuses, Thank you in advance to hearing my plea. First off, I'm new to the world of statistics, so if possible please keep it plain and...

    Started by BasW‎, 12-16-2014 02:56 PM
    • Replies: 3
    • Views: 1,219
    12-16-2014, 04:16 PM Go to last post
  21. Analysis of probability plot help

    Hey, I was wondering if anyone could help me in understanding what factors i would need to focus on when i am commenting on the appearances of a...

    Started by euro-dragon‎, 03-27-2008 03:54 AM
    • Replies: 0
    • Views: 1,950
    03-27-2008, 03:54 AM Go to last post
  22. Analysis of questions in a questionnaire survey?

    I a a Masters of pharmacy student and currently have a problem with what test to use in order to analyse difference between two scores obtained on a...

    Started by lmay0001‎, 08-22-2012 05:16 PM
    • Replies: 1
    • Views: 1,266
    08-23-2012, 03:35 AM Go to last post
  23. Analysis of Ranked Objects

    Dear forum, I have a question about the analysis of ranked data. I have read several posts here, but cannot seem to understand how best to analyze...

    Started by rclukey‎, 11-03-2010 08:51 PM
    • Replies: 0
    • Views: 2,228
    11-03-2010, 08:51 PM Go to last post
  24. Analysis of residues

    Let Y_i the observed values \hat{Y_i} the fitted values and e_i the residues, for i=1,2,3,4,5. Then we have Y=(35,17,42,28,53) and...

    Started by askazy‎, 10-10-2015 09:03 PM
    • Replies: 1
    • Views: 2,090
    10-11-2015, 06:56 AM Go to last post
  25. Analysis of simple "yes/no" data

    Dear All, I will firstly confess statistical incompetence, or perhaps general numerical incompetence. Perhaps just incompetence? I am attempting...

    Started by Captain Sensible‎, 11-30-2010 09:59 PM
    • Replies: 9
    • Views: 6,920
    11-30-2010, 11:28 PM Go to last post
  26. Analysis of simple yes/no data?

    Hello. I am dealing with choice data (dependent variables are 'correct' or 'incorrect' choice), and am unsure of the analysis. I have 2 experimental...

    Started by Jimmy55‎, 02-23-2009 07:35 AM
    • Replies: 1
    • Views: 10,109
    02-23-2009, 04:44 PM Go to last post
  27. Analysis of soil fertility - Looking for guidance/confirmation

    Hello, I have agreed to help a friend out with the data analysis for a major school project, with the caveat that I am no expert in statistics. It's...

    Started by goatnuck‎, 03-21-2012 02:26 PM
    • Replies: 8
    • Views: 1,838
    03-21-2012, 05:53 PM Go to last post
  28. Question Analysis of three difference samples

    Hi there, I have surveyed three separate populations frome which I have obtained fairly representative samples. One was a stratified sample (as...

    Started by max‎, 05-24-2006 04:30 AM
    • Replies: 0
    • Views: 1,928
    05-24-2006, 04:30 AM Go to last post
  29. Analysis of two data sets ranked by importance

    I would like to test a hypotheses based on whether two data sets, ranked by order of impotance, are ranked the same. One will be ranked using...

    Started by griffin79‎, 04-14-2016 04:25 PM
    • Replies: 6
    • Views: 1,633
    04-16-2016, 08:37 AM Go to last post
  30. Analysis of two variables in one group

    Hello everyone, I have following question: I have two compare the concentration of two different drugs in a group of 19 patients. Every patient...

    Started by Boian‎, 10-06-2013 11:53 AM
    • Replies: 1
    • Views: 955
    10-06-2013, 01:19 PM Go to last post
  31. Analysis of variance in the framework of time series

    Hello everyone, Every time I open a book on time series, in the chapter Analysis of variance, it starts off right away with things like...

    Started by Sayer‎, 06-04-2014 12:54 PM
    • Replies: 1
    • Views: 903
    06-04-2014, 02:29 PM Go to last post
  32. Analysis of Variance Q - Please help

    The manager of a computer software company wishes to study the number of hours senior executives spend at their desktop computers by type of...

    Started by rochestergirlny‎, 04-09-2009 11:37 PM
    • Replies: 0
    • Views: 3,827
    04-09-2009, 11:37 PM Go to last post
  33. Analysis of Variance with replication and multiple comparisons

    Hi: Could someone please help me with the following problem? I am performing an Analysis of Variance with replication, balanced design but it is...

    Started by Ale2012‎, 04-26-2011 03:28 AM
    • Replies: 1
    • Views: 2,309
    04-26-2011, 07:30 AM Go to last post
  34. Question Analysis of Variance-F Distribution

    The FIRST problem I am having is plugging in the right numbers into the formula. I have an attachment of the problem because I cannot paste directly...

    Started by lovetoreadXYZ‎, 06-14-2006 02:56 PM
    • Replies: 4
    • Views: 3,809
    06-16-2006, 10:07 PM Go to last post
  35. Analysis of weight curves

    Hello everyone. Thanks in advance for your help. I need to analyse the body weight growth curves from two groups of mice. The experimental group is...

    Started by leandrox‎, 11-22-2011 11:01 AM
    • Replies: 0
    • Views: 4,092
    11-22-2011, 11:01 AM Go to last post
  36. analysis question

    Can I use chi square test if my nominal variables have more than 2 levels? For example relationship between brain specialization (left, right, whole)...

    Started by norajones‎, 04-13-2012 01:21 PM
    • Replies: 4
    • Views: 3,305
    04-14-2012, 01:41 PM Go to last post
  37. Cool Analytical flow, correlation research

    Hi Stat's experts. For my Experiment which I classified as Correlational research I will look for relations to Breathing pattern disorders (BPD)....

    Started by ohdear‎, 03-07-2015 05:22 AM
    correlation research, stat's experts
    • Replies: 0
    • Views: 947
    03-07-2015, 05:22 AM Go to last post
  38. Analytical model for percentages

    Hi everyone. I'm new to the forum and have a question. I'm working with a data set about the police, where entire shifts of police work was...

    Started by sricheso‎, 08-29-2007 01:15 PM
    • Replies: 0
    • Views: 2,063
    08-29-2007, 01:15 PM Go to last post
  39. Analyze Delivery Time Goals - Best method and chart

    Hello, I work for a small mom and pop delivery company. We have a delivery goal of 10 minutes and we track what time we get the call, what time we...

    Started by bvanscoy678‎, 04-25-2012 10:30 PM
    • Replies: 0
    • Views: 928
    04-25-2012, 10:30 PM Go to last post
  40. analyze groups of repeated measures

    Hi all, I have the following setup. Several people (male and female) had to rate different pictures. Certain pictures share specific (categorical)...

    Started by poons‎, 08-31-2015 06:26 AM
    • Replies: 0
    • Views: 976
    08-31-2015, 06:26 AM Go to last post
  41. Analyze the similarity among groups

    Recently, I have to analyze the similarity among groups. This is my problem. 1. There are 20 independent groups. (A1, A2, ..., A20). 2. Each...

    Started by callisto‎, 03-31-2008 10:17 AM
    • Replies: 0
    • Views: 2,729
    03-31-2008, 10:17 AM Go to last post
  42. Analyzing 3 qualitative (categorical) variables

    I have a data set with 4 values per record. Product, Location, Month of Year, Units Sold. I am trying to determine for each product if location...

    Started by gatorrob86‎, 02-21-2017 01:00 PM
    • Replies: 1
    • Views: 1,659
    02-22-2017, 08:38 AM Go to last post
  43. Analyzing a Line Chart

    I have a line chart with number of people on the y axis and weeks on the x axis. I was wondering if someone knew how to analyze or determine the...

    Started by cg21‎, 11-27-2014 06:29 PM
    • Replies: 2
    • Views: 1,286
    11-27-2014, 10:01 PM Go to last post
  44. Analyzing change between two groups and two time points; Repeated Measures or T-test?

    I'm interested in analyzing whether there is any difference in a continuous variable 1. between two groups, 2. at 3 different time points. Does it...

    Started by iNcorruptible‎, 02-12-2014 12:51 PM
    • Replies: 3
    • Views: 2,293
    02-13-2014, 03:39 AM Go to last post
  45. Analyzing changes in fishery over time

    Hi all! I'm a rookie in statistics, but just wrapped up a semester of R analysis for natural resources. I'm working on my grad capstone and hoping I...

    Started by xsethx‎, 05-15-2017 10:38 PM
    • Replies: 0
    • Views: 842
    05-15-2017, 10:38 PM Go to last post
  46. Analyzing choices

    Hi everyone, I wasn't sure if this is the right place to post this, but I'm looking for advice on how to analyze the likelihood of choosing one...

    Started by stats_monkey‎, 10-16-2013 11:34 AM
    • Replies: 3
    • Views: 1,207
    10-21-2013, 10:42 AM Go to last post
  47. analyzing columns of data

    I have a general concept statistics question that is shown on the attachment. Basically, the questions asks, if 10 students take 3 separate exams,...

    Started by lliberm1‎, 10-07-2009 03:55 PM
    • Replies: 3
    • Views: 2,317
    10-09-2009, 01:38 PM Go to last post
  48. analyzing columns of data

    I have a question regarding how to rank students based on their test scores on 3 tests (see attached excel file). Different approaches are shown on...

    Started by lliberm1‎, 10-18-2009 06:15 PM
    • Replies: 0
    • Views: 1,886
    10-18-2009, 06:15 PM Go to last post
  49. analyzing columns of data follow up

    I have a question regarding how to rank students based on their test scores on 3 tests (see attached excel file). Different approaches are shown on...

    Started by lliberm1‎, 10-12-2009 01:09 PM
    • Replies: 0
    • Views: 2,104
    10-12-2009, 01:09 PM Go to last post
  50. Analyzing daily data by month and day of week

    Hi :) So I've got this data - the number of parking tickets issued, per day, in a certain locale over one year. Overall, then, n=365. I am...

    Started by retrofit81‎, 04-16-2007 12:39 AM
    • Replies: 0
    • Views: 2,854
    04-16-2007, 12:39 AM Go to last post
  51. Analyzing Data

    I have a question that requests that I analyze the following data the alpha is set at .01 and the df=120 Color n mean s...

    Started by jordan_catalano‎, 04-15-2008 01:39 PM
    • Replies: 1
    • Views: 2,543
    04-24-2008, 01:33 PM Go to last post
  52. Analyzing Data with Gold Standard

    Hi All! Like most, I've been away from stats for a while. However, I am getting back into it. This is not a homework assignment and I have...

    Started by statnewb‎, 08-19-2011 01:10 PM
    • Replies: 0
    • Views: 1,825
    08-19-2011, 01:10 PM Go to last post
  53. Analyzing data with relatively rare events.

    Hi I am looking for insights in to how to gain insights from a variable that is for the most part zero, but in about 1% of the cases, takes...

    Started by curious‎, 04-20-2012 06:44 PM
    • Replies: 2
    • Views: 2,329
    04-20-2012, 08:11 PM Go to last post
  54. Analyzing data. Unsure which test to use

    It has been a LONG time since my last stat course. Working on an experiment with a student in my science class who is looking at the effects of trace...

    Started by dwilliams‎, 11-23-2012 08:50 AM
    • Replies: 1
    • Views: 977
    11-23-2012, 01:00 PM Go to last post
  55. analyzing dichotomous data

    Hi everyone, I'm here with a short question. I'm dealing with a dataset including 10 dichotomous (present/absent: 1/0) variables for 100 subjects....

    Started by marco77‎, 10-02-2011 01:32 PM
    • Replies: 2
    • Views: 2,379
    10-03-2011, 11:27 AM Go to last post
  56. Analyzing Differenced Data

    Hello, I have a lake and we're looking at the changes each year in the amount of liquid in the lake (so freezing, melting, etc). I am performing...

    Started by belletire89‎, 06-05-2013 09:43 AM
    changepoint, differenced data
    • Replies: 0
    • Views: 835
    06-05-2013, 09:43 AM Go to last post
  57. Analyzing Likert Scores

    Hi - from this thread you'll be able to ascertain my very low skill levels when it comes to statistics! Here is your chance to give me the answer and...

    Started by Varnesh‎, 06-06-2007 07:45 AM
    • Replies: 2
    • Views: 5,128
    06-06-2007, 05:56 PM Go to last post
  58. analyzing percentages

    If there are 118 subjects in a study involving 2 tests and we wanted to rank the subjects effectiveness. Would it be correct to use the attached...

    Started by lliberm1‎, 10-18-2009 06:13 PM
    • Replies: 0
    • Views: 2,601
    10-18-2009, 06:13 PM Go to last post
  59. analyzing percentages

    If there are 118 subjects in a study involving 2 tests and we wanted to rank the subjects effectiveness. Would it be correct to use the attached...

    Started by lliberm1‎, 10-12-2009 01:22 PM
    • Replies: 0
    • Views: 2,607
    10-12-2009, 01:22 PM Go to last post
  60. Analyzing population level data

    I am curious how to approach this particular problem: I have a data set with multiple subgroups of variables (FROM DIFFERENT STUDIES) that have...

    Started by californication2012‎, 04-09-2012 12:32 AM
    • Replies: 0
    • Views: 1,362
    04-09-2012, 12:32 AM Go to last post

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