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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: 196,807
    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: 66,786
    09-30-2005, 09:44 AM Go to last post
  1. ANOVA table confusion - how is error estimate so large?

    I am confused about the Adj. MS term in the model. The data for the dependent var. only has a range of 4.25 to 131.4, yet the estimate of error (Adj....

    Started by Silvanus‎, 08-05-2009 05:32 AM
    • Replies: 2
    • Views: 3,244
    08-05-2009, 06:01 AM Go to last post
  2. ANOVA table from KyPlot - What does it tell me?

    Hello everyone, I've got the following data to evaluate: - there 8 groups, group A to group H - for each group, I have 3 samples - so a total...

    Started by Lebster‎, 03-24-2013 09:07 AM
    • Replies: 0
    • Views: 2,197
    03-24-2013, 09:07 AM Go to last post
  3. ANOVA table, f ratio and mean squares

    Hi, Here is my ANOVA table from a nested ANOVA, Treatment and year are fixed. ...

    Started by mixmaster‎, 07-29-2008 04:41 AM
    • Replies: 2
    • Views: 17,020
    07-30-2008, 03:36 AM Go to last post
  4. ANOVA terminology

    I am reviewing for comps and I am confused about the difference between a factorial and crossed design. In both cases they appear to have each level...

    Started by noetsi‎, 08-21-2012 10:31 AM
    • Replies: 9
    • Views: 1,434
    08-22-2012, 04:15 PM Go to last post
  5. Question ANOVA test

    Hello, I need help with the ANOVA test. I want to compare the % change is weight between 4 groups, 6 objects in each group. I measured my...

    Started by veredb‎, 04-05-2011 02:30 AM
    anova
    • Replies: 2
    • Views: 5,768
    04-05-2011, 04:26 AM Go to last post
  6. ANOVA test for unequal repeated measures from samples

    Hi there, I know how to perform two-way ANOVA with repeated measurements but I don't know how to go ahead with a data of unequal repeated...

    Started by madsmad‎, 01-07-2013 06:27 AM
    • Replies: 1
    • Views: 4,975
    01-09-2013, 01:06 PM Go to last post
  7. ANOVA test noob (need help in a Project)

    I am a graduate student who just did take one stat course in my undergraduate study, and this is the first time for me to have to use ANOVA table, my...

    Started by Rawashdeh_omar‎, 03-26-2009 02:58 PM
    • Replies: 1
    • Views: 2,755
    03-26-2009, 03:46 PM Go to last post
  8. ANOVA Test requirements

    I got a research article that I need to critically evaluate and I want to check whether the study meet the criteria for using ANOVA test (i.e....

    Started by tonynz‎, 04-07-2011 11:13 AM
    • Replies: 2
    • Views: 5,537
    09-18-2015, 03:59 PM Go to last post
  9. ANOVA test results

    I have carried out a two factor ANOVA with replication. The results show that there is no difference between rows or columns, but there is a...

    Started by Layo909‎, 05-19-2011 12:11 AM
    • Replies: 2
    • Views: 2,228
    05-19-2011, 10:53 PM Go to last post
  10. ANOVA test Samples

    When running a single factor ANOVA test, do the number of subjects, (sample sizes) have to be equal? Can one column have more data than the other...

    Started by myystique‎, 09-24-2014 06:58 PM
    anova, sample size
    • Replies: 5
    • Views: 2,746
    09-25-2014, 06:37 AM Go to last post
  11. ANOVA testing!

    Your professor is interested in how to effectively teach statistics to undergraduates so he randomly selects 21 students from the undergraduate...

    Started by mtton‎, 11-15-2010 01:06 PM
    • Replies: 7
    • Views: 4,571
    11-15-2010, 09:25 PM Go to last post
  12. ANOVA type analysis with unknown weighting

    Here's the problem I'm trying to solve... I am trying to measure the performance of a student in five categories. I give the student a test of...

    Started by GSM‎, 02-25-2008 02:17 PM
    • Replies: 0
    • Views: 1,868
    02-25-2008, 02:17 PM Go to last post
  13. ANOVA using time variables

    I am trying to find the difference between 3 groups to determine if the times between authorization to an event is different (longer, shorter). They...

    Started by kickassness‎, 02-15-2016 12:20 PM
    anova, time
    • Replies: 1
    • Views: 1,113
    02-15-2016, 07:43 PM Go to last post
  14. ANOVA versus Multiple T-Tests?

    Maybe someone here clear up some confusion I'm having about ANOVAs and T-Tests.... If you have three or more groups of data being compared to a...

    Started by Foodcubes‎, 01-05-2009 11:32 PM
    • Replies: 1
    • Views: 5,178
    01-06-2009, 01:54 AM Go to last post
  15. ANOVA versus t tests

    I am analyzing data from a 2x2x2 mixed factorial design with A and B being the within-subject factors. More specifically, B is the time of testing,...

    Started by cooper‎, 04-07-2009 11:23 AM
    • Replies: 0
    • Views: 2,738
    04-07-2009, 11:23 AM Go to last post
  16. ANOVA vs Regression?

    Attached with this post is a comma delimited file I used to run some stats analysis. I am interested in the significance and influence of 3...

    Started by Andre Smit‎, 08-03-2009 12:16 PM
    • Replies: 5
    • Views: 6,854
    08-05-2009, 10:29 PM Go to last post
  17. anova vs wilcoxon

    hi guys! i'm relatively new to statistics, but i'm picking up some of the basics. i was conducting a research on the effect of nicotine gum on...

    Started by ivn‎, 11-27-2013 07:49 PM
    • Replies: 3
    • Views: 4,437
    11-30-2013, 06:38 AM Go to last post
  18. ANOVA vs. MANOVA

    Can you provide a good example that can describe the differences between ANOVA vs. MANOVA? I know the primary differences is that MANOVA involves...

    Started by lstanley‎, 10-01-2006 04:03 PM
    • Replies: 1
    • Views: 3,307
    10-02-2006, 05:47 PM Go to last post
  19. ANOVA vs. t-test

    Dear Stats talkers, What's your answer to the question when to use a t-test vs. analysis of variance? Could you also give an example case for...

    Started by jaregi‎, 01-17-2007 06:16 AM
    • Replies: 2
    • Views: 6,864
    01-17-2007, 07:26 AM Go to last post
  20. Anova with non-normal data!

    Hello guys, I did an ANOVA for my data -- 1 dependent variable with 4 independent variables -- but after doing that, I decided to check the...

    Started by statn00b‎, 11-22-2011 05:54 PM
    • Replies: 2
    • Views: 4,854
    11-23-2011, 08:57 AM Go to last post
  21. ANOVA with only some levels of a factor?

    I have run an experiment which had a within-subjects factor of sentence type, with 5 types of sentences, and a between-subjects factor of test...

    Started by garywood84‎, 03-23-2008 06:46 AM
    • Replies: 0
    • Views: 2,536
    03-23-2008, 06:46 AM Go to last post
  22. ANOVA with percentages

    Hello -- I'm looking for some guidance on how to make my percentage data appropriate for ANOVA. Here is what I have: The dependent variable is a...

    Started by marika‎, 01-11-2013 02:44 PM
    • Replies: 10
    • Views: 12,004
    01-13-2013, 02:20 PM Go to last post
  23. ANOVA with repeated measurement: multivariate tests; MANOVA for repeated measures

    Hello everyone I need help with my analysis of variance with repeated measurement. I did a study where I measured 6 values of every participant...

    Started by Lönneberga‎, 08-05-2014 07:56 AM
    • Replies: 0
    • Views: 946
    08-05-2014, 07:56 AM Go to last post
  24. ANOVA with unequal sample sizes

    hello, I have a question about ANOVA. This is the output I received when testing the effect of 'opnop' on mmse1. opnop is divided in 4 groups,...

    Started by Leslie‎, 02-01-2008 09:30 AM
    • Replies: 1
    • Views: 13,673
    02-01-2008, 02:54 PM Go to last post
  25. Question ANOVA's

    Is it possible for someone to tell me how to do them?

    Started by angeleyes‎, 10-17-2005 09:30 PM
    • Replies: 2
    • Views: 3,382
    10-17-2005, 09:48 PM Go to last post
  26. ANOVA's normality assumptions

    Hi, I heard that F-tests work well with data that aren't normally distributed, currently with my ANOVA, the data does not have normal...

    Started by taepodong1101‎, 04-19-2009 10:10 PM
    • Replies: 3
    • Views: 2,978
    04-20-2009, 07:16 AM Go to last post
  27. ANOVA, assumptions mandatory?

    So on numerous websites, which of course we can trust completely ;) I've run across arguments that the normality and homogeneity assumptions for...

    Started by jawon‎, 09-03-2008 02:29 PM
    • Replies: 13
    • Views: 10,358
    09-12-2008, 07:44 AM Go to last post
  28. ANOVA, General Linear Model, Repeated Measures

    Hi, i am completing my dissertation on the effects of the colours used in advertising logos with respect to gender. I have done some research and...

    Started by cubensis‎, 05-07-2011 08:04 AM
    • Replies: 0
    • Views: 2,143
    05-07-2011, 08:04 AM Go to last post
  29. Question anova, Tukey post test, t test

    HI all, and thanks in advance for any help you can give. I am analysing data coming out of genetic studies and have 5 groups to compare...

    Started by Nancy‎, 08-04-2009 11:28 AM
    • Replies: 2
    • Views: 13,794
    08-04-2009, 12:05 PM Go to last post
  30. anova,battery of t-tests or something else?

    Dear members, I would like to kindly ask for help with the following problem. I have toxicity measurement on logscale for 50+ objects which belong...

    Started by gemko‎, 09-28-2008 08:16 PM
    • Replies: 0
    • Views: 1,990
    09-28-2008, 08:16 PM Go to last post
  31. Anova. Please I need help

    Hello, I'd be grateful if you can help me. I've not come from a Maths background but I must use it in statistics calculations. I was given...

    Started by ZENASMILE‎, 07-12-2010 04:16 AM
    • Replies: 3
    • Views: 2,199
    07-14-2010, 07:40 AM Go to last post
  32. ANOVA/ANCOVA/Regression

    question : The linkage between "self learning" and "work efficiency" differs between women and men can be determined by : a. two-way ANOVA....

    Started by amir‎, 02-07-2009 04:38 AM
    • Replies: 6
    • Views: 3,380
    02-08-2009, 10:24 AM Go to last post
  33. ANOVA/General Linear Model Confusion

    I'm just trying to understand a few things. Although I have "done" a lot of practical statistics I've never really taken beyond the most basic...

    Started by yaklow‎, 01-14-2011 08:09 AM
    • Replies: 4
    • Views: 4,424
    01-14-2011, 01:57 PM Go to last post
  34. ANOVA/Regression

    Hi all, First timer here. I am hoping this is the right forum and that someone could point me in the right direction. I am analyzing a dataset...

    Started by Snickers‎, 03-01-2014 01:22 PM
    contingency table, small sample problem
    • Replies: 7
    • Views: 2,156
    03-02-2014, 01:41 PM Go to last post
  35. ANOVA/Ttest for means of means

    Hi, I am trying to run stats for some data that are means of means (ie. there are 10 points of data at each site and the mean is taken, then the...

    Started by sqrt‎, 07-26-2010 12:20 AM
    • Replies: 3
    • Views: 5,033
    07-27-2010, 09:52 PM Go to last post
  36. ANOVA: Post-hoc tests

    I have run a RM ANOVA on data from a study that had two independent variables: group (age groups, of which there are 4), and type sentence type (of...

    Started by garywood84‎, 12-30-2013 03:50 PM
    • Replies: 0
    • Views: 802
    12-30-2013, 03:50 PM Go to last post
  37. ANOVA: subjects as a factor

    Hi, I recently was asked the disadvantages of using subjects as a factor in an ANOVA with regard to generalising to the population. Is it that...

    Started by legoman‎, 08-13-2007 10:07 AM
    • Replies: 0
    • Views: 2,421
    08-13-2007, 10:07 AM Go to last post
  38. ANOVA? how?

    hi all, this is fairly elementary, though would appreciate any help: suppose I have 3 store locations that carry identical number of product types...

    Started by corrad‎, 12-20-2012 12:38 AM
    • Replies: 3
    • Views: 1,378
    12-20-2012, 06:24 PM Go to last post
  39. Question ANOVA? I need support/help with SPSS and Stats

    Hi, I have a group ( n = 8 ), whom performed 2 different exercise protocols pre/post a vertical jump test, these were (1) single set of squats,...

    Started by AJW1995‎, 12-28-2015 10:49 AM
    • Replies: 1
    • Views: 995
    12-28-2015, 12:10 PM Go to last post
  40. Smile ANOVA? Looking at percentage habitat use (6 different habitats) across four seasons

    Hi, I am trying to look at whether habitat use of 6 different habitat types differs across 4 seasons. I have managed to run ANOVA tests but I'm...

    Started by whyisstatssohard‎, 05-10-2017 03:24 PM
    anova, friedman test, help me!, kruskal wallis, statistics
    • Replies: 1
    • Views: 854
    05-11-2017, 02:16 PM Go to last post
  41. Smile Anova? Manova? multiple T-tests? (newbie question warning)

    Hello all I have study data to analyze, and my normal stats guru is out of town. The study (some facts altered to protect the innocent) goes...

    Started by Voice Nerd‎, 05-24-2013 07:52 PM
    correlation analysis, newbie, study design, variance
    • Replies: 2
    • Views: 1,648
    06-04-2013, 04:49 AM Go to last post
  42. ANOVAs with different cell sizes

    Hi, I ran a 5(identity style) X 2(experimental condition) ANOVA but it turns out my counts for each type of identity style are nowhere near equal....

    Started by tkut‎, 05-08-2009 02:00 PM
    • Replies: 0
    • Views: 2,281
    05-08-2009, 02:00 PM Go to last post
  43. ANSI/ASQC Q3 - determine sample size?

    Hello, I have been required to determine the sample size and risk using ANSI/ASQC Q3 tables. This is to come up with samples to inspect...

    Started by animateme‎, 03-29-2011 03:06 PM
    • Replies: 0
    • Views: 3,437
    03-29-2011, 03:06 PM Go to last post
  44. Antifouling Experiment, which test?

    Dear Members, I have a dataset from a marine antifouling paint experiment and I am in doubt which test to use. I applied PCA analysis and a...

    Started by ekinakoglu‎, 06-03-2009 11:09 AM
    • Replies: 0
    • Views: 3,009
    06-03-2009, 11:09 AM Go to last post
  45. Any Assistance Is Appreciated

    The Manager wants to use a new tutorial to teach the students about business ethics.* As an experiment he randomly selected 15 students and randomly...

    Started by TEE323‎, 06-03-2009 12:00 PM
    • Replies: 6
    • Views: 3,386
    06-07-2009, 04:19 PM Go to last post
  46. any automatic way to delete data

    I have downloaded data in Microsoft Excel format. I need to delete some rows because there are not data in these rows. I can delete them manually....

    Started by t.wang21@yahoo.com.au‎, 04-09-2012 07:09 PM
    • Replies: 3
    • Views: 2,209
    04-10-2012, 12:28 AM Go to last post
  47. Red face Any clues on how many combinations there are here?

    Laura is training for a week-long mountain cycling tour. She has 12 short hilly routes from which to choose mid-week rides. a) How many ways...

    Started by Rachelspeelman‎, 08-05-2007 10:16 PM
    • Replies: 1
    • Views: 1,674
    08-06-2007, 01:48 PM Go to last post
  48. Question any clues on this one?

    Let x be a random variable that represents the length of time it takes a student to write a term paper for Dr. Adam's Sociology class. After...

    Started by Rachelspeelman‎, 08-06-2007 05:36 PM
    • Replies: 0
    • Views: 1,819
    08-06-2007, 05:36 PM Go to last post
  49. Red face any guidance on this problem would be great!

    Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ =...

    Started by Rachelspeelman‎, 07-31-2007 05:27 AM
    • Replies: 1
    • Views: 2,408
    07-31-2007, 08:30 PM Go to last post
  50. any help greatly appreciated

    In January 1993 15% of Irish manufacturers felt we were “well into recovery” ,42% felt we had “just started a recovery” 40% felt we were “still in a...

    Started by denisebowie21‎, 10-16-2008 03:47 PM
    • Replies: 1
    • Views: 2,748
    10-17-2008, 02:46 AM Go to last post
  51. Question Any help on solving this one?

    You roll two fair dice, one red and one green. a) What is the probability of getting a number less than 5 on both? b) What is the probability...

    Started by Rachelspeelman‎, 08-06-2007 03:08 PM
    • Replies: 1
    • Views: 2,204
    08-06-2007, 05:33 PM Go to last post
  52. Question any help on this probability?

    Richard has just been given a ten-question multiple choice test in his history class. Each question has five answers only one of which is correct. ...

    Started by Rachelspeelman‎, 08-07-2007 05:25 AM
    • Replies: 1
    • Views: 2,027
    08-09-2007, 05:49 PM Go to last post
  53. Red face Any help on this would be great!

    Long-term history has shown that 65% of all elected offices in a rural county have been won by Republican candidates. This year there are 5 offices...

    Started by Rachelspeelman‎, 08-06-2007 05:34 PM
    • Replies: 0
    • Views: 2,187
    08-06-2007, 05:34 PM Go to last post
  54. Question any help on this would be great!

    Let x be a random variable that represents the length of time it takes a student to write a term paper for Dr. Adam's Sociology class. After...

    Started by Rachelspeelman‎, 08-07-2007 05:28 AM
    • Replies: 0
    • Views: 2,152
    08-07-2007, 05:28 AM Go to last post
  55. Any help would be greatly appreciated

    I am desperate for help as my dissertation has to be handed in very soon and i am totally baffled with the data analysis section. I have carried...

    Started by gepworth‎, 01-02-2007 11:33 AM
    • Replies: 3
    • Views: 3,092
    01-03-2007, 05:58 AM Go to last post
  56. Red face Any ideas on where to start on converting these to a standard z score?

    Lewis earned 85 on his biology midterm and 81 on his history midterm. In the biology class the mean score was 79 with standard deviation 5. In the...

    Started by Rachelspeelman‎, 07-24-2007 08:23 PM
    • Replies: 1
    • Views: 2,746
    07-30-2007, 06:56 PM Go to last post
  57. Smile any input please

    Hi, I would appreciate any input regarding this problem: I showed my effort under each question A college professor found herself assigned to a...

    Started by sara‎, 06-15-2008 12:48 PM
    • Replies: 1
    • Views: 2,779
    06-16-2008, 01:42 AM Go to last post
  58. Cool Any One Can Tell Me Desirable Properties of Interval Estimation ?????

    Dear All of you i need your help i need help about this "Desirable Properties of Interval Estimation "

    Started by ameeq7746‎, 03-05-2013 11:49 AM
    • Replies: 8
    • Views: 1,428
    11-21-2013, 11:48 AM Go to last post
  59. Any R experts? Problem here

    OK, so I've looked and looked at the help on R, but I can't find a method for solving this. I have some electoral data, including the Polling...

    Started by naivesincerity‎, 01-10-2007 11:08 AM
    • Replies: 0
    • Views: 2,149
    01-10-2007, 11:08 AM Go to last post
  60. Post Any Suggestions A Good Discussion Topic For An Online Intro Statistics Course

    I'm teaching an online Intro Statistics Course for the first time. This week my Discussion Forum Topic is "How will Statistics be important in the...

    Started by mathprof‎, 02-02-2016 05:36 PM
    discussion, forum, online, topic
    • Replies: 0
    • Views: 1,532
    02-02-2016, 05:36 PM Go to last post

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