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# Forum: Statistics

Statistics course and homework discussion. Elementary statistics.

1. ### 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...

• Replies: 1
• Views: 196,642
07-16-2014, 11:01 AM
2. ### 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)...

• Replies: 0
• Views: 66,663
09-30-2005, 09:44 AM
1. ### Any suggestions?

I am using Systat 13.1 to predict the influence of tobacco use on blood flow. Tobacco use is an independent binary variable (1,0, yes/no) and blood...

• Replies: 9
• Views: 1,115
12-31-2012, 03:23 PM
2. ### Any suggestions??

I am working on a project to construct and report results of a regression model, but I am stuck on trying to find an idea to construct. I originally...

• Replies: 3
• Views: 2,419
04-19-2006, 09:59 AM
3. ### any takers on this one?

Recently the national average yield on municipal bonds has been μ = 4.19%. A random sample of 16 Arizona municipal bonds gave an average yield of...

• Replies: 0
• Views: 1,855
08-07-2007, 05:30 AM
4. ### Any tool/package for model validation in Logistic Regression?

Hello! This question is related to an earlier thread of mine about logistic regression modelling. I would like to know if anyone knows any...

• Replies: 0
• Views: 1,283
07-14-2014, 01:29 AM
5. ### Anybody give me idea about my solution?

My solution is n =30, = 0.795, s^2 =0.000586 99% confidence interval of σ = (0.018,0.036)

• Replies: 0
• Views: 1,416
12-01-2014, 12:50 AM
6. ### Anyone can help me solve this Bayes statistics peoblem?Thanks so much!

1. Exchangeability with known model parameters: For each of the following three examples, answer: (i) Are observations y1 and y2 exchangeable? (ii)...

• Replies: 0
• Views: 1,551
10-09-2014, 03:09 PM
7. ### Anyone familiar with the Lo Mackinlay Variance ratio statistic/test?

I'm trying to compute the Variance ratio statistic for some stock returns I have. I have a data set of 3600 daily stock returns and I'm trying to...

• Replies: 0
• Views: 3,132
c2q
02-25-2012, 08:04 PM
8. ### Anyone good with histograms can you help me

I can't copy my hw due tonight but I am having trouble finding two answers to it. It's finding a percentage from the graphy and the most crowded...

• Replies: 0
• Views: 2,915
01-28-2008, 05:36 PM
9. ### Anyone great at Statistics and want to make \$40 for about 30 mins. of your time?

I'm conducting an online assessment. It's via a tutor website (USA based and well known) think artificial intelligence. I have a master account and...

• Replies: 16
• Views: 5,304
07-03-2011, 12:33 AM
10. ### Anyone has The Practice of Statistics Prep for the AP Exam Supplement book?

Does anybody has The Practice of Statistics Prep for the AP Exam Supplement book? Look like this...

• Replies: 0
• Views: 5,195
06-07-2010, 10:27 PM
11. ### Anyone know how to do Correlation and Regression?

I'm working on problems dealing with correlation and regression. It tells me that I can use the TI-83 calculator and punch in paired data lists L1...

• Replies: 0
• Views: 3,378
09-28-2006, 06:33 PM
12. ### anyone know how to do this one?

Recently the national average yield on municipal bonds has been μ = 4.19%. A random sample of 16 Arizona municipal bonds gave an average yield of...

• Replies: 0
• Views: 1,765
08-06-2007, 05:38 PM
13. ### anyone know how to do this?

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...

• Replies: 1
• Views: 1,738
08-09-2007, 05:54 PM
14. ### anyone know how to do this? im stumped.

• Replies: 7
• Views: 1,602
03-30-2014, 10:44 AM
15. ### Anyone want to look at my SPSS file?

Hi folks - First post. I suspect this is a common question in statistics... What am I doing? I have collected data from 3 groups - A, B & C....

• Replies: 3
• Views: 2,839
07-15-2009, 01:15 PM

I am having trouble with this question The following data is the age at death (in days) for infants who died from sudden infant death syndrome...

• Replies: 2
• Views: 2,775
03-08-2013, 09:15 PM
17. ### APA Report Results Stats help

Hi, I have no idea how to present results data for a psych APA report. Any help at all would be greatly appreciated. Tables 2 and 4 present...

• Replies: 1
• Views: 2,676
10-14-2008, 07:25 AM
18. ### APA reporting single main effects

Hi, thank you in advance for your help! I performed a repeat measures ANOVA on my data; the interaction was significant so I performed a single...

• Replies: 0
• Views: 1,508
03-28-2014, 05:23 AM
19. ### Apparent contradiction in Mann-Whitney-Wilcoxon test results

I have 2 data sets, each N=10, that I would like to compare. They fail Levene's test for homogeneity of variances, and for this reason, I can't use...

• Replies: 5
• Views: 1,580
05-29-2013, 11:01 AM
20. ### Apples and Pears

Hi all, I have a challenge for you, this might be quite easy or quite difficult... as I neither know the answer nor have any idea of the solution....

• Replies: 2
• Views: 4,152
07-07-2008, 01:04 PM
21. ### Application of F-statistic and Mallows' Cp

Hi, I'm looking for some referable references that indicate the followings: 1) F-statistic in comparing two models should be employed only where...

• Replies: 3
• Views: 5,089
02-10-2009, 06:25 PM
22. ### Application of Multivariate Analysis

The following situation is proven valuable where multivariate analysis can be applied. This example is taken from the book `Applied Multivariate...

• Replies: 0
• Views: 2,311
01-09-2015, 08:10 AM
23. ### Application of PCA component scores in regression model.

Hi, Is there anybody who is more or less "fluent" in principle component analysis? I'd need to use 20 categorical variables (2 or 5 or 7...

• Replies: 12
• Views: 7,099
09-15-2011, 06:16 AM
24. ### Application of Statistics

Hi Every one, I want to carry out a research on how teaching methodology affect the performance of students in a secondary school. Please how...

• Replies: 0
• Views: 1,093
07-20-2013, 04:59 AM
25. ### Application of T-Distribution

Hello Guys, Ok. I have never came across a situation like this before so I am not quite sure if I could use T-Distribution to construct a...

• Replies: 2
• Views: 8,297
06-28-2010, 02:12 AM
26. ### Applied Multivariate Methods exam practice questions needed

anyone who has practice questions for : - Principle Component Analysis - discriminant analysis - factor analysis - cluster analysis i am...

• Replies: 0
• Views: 3,285
08-17-2010, 08:43 AM
27. ### Applied statistics qn: confidence intervals

I'm a data analyst in a manufacturing comany, a one trick pony with a limited statistical toolbox that used to be adequate for my ANOVA-based daily...

• Replies: 0
• Views: 2,046
04-15-2009, 08:54 AM
28. ### Applying Normal Distribution

So here is the question followed by what the steps I took to solve it. Please let me know if I have done this correctly: Question: The time...

• Replies: 0
• Views: 1,372
03-30-2013, 10:08 PM
29. ### Applying Statistical Analysis to Real World Data

Hi all, Background I'm an intern at a large retailer working on a summer project. The project is to identify why stores with very similar sales...

• Replies: 2
• Views: 5,125
07-08-2010, 11:46 AM
30. ### Applying the Q test twice to the same data set (Why not?)

Hello Everyone. Scenario You apply the Q test to a data set and find that you may indeed remove a particular datum from the data set. ...

• Replies: 3
• Views: 2,694
11-08-2006, 12:28 AM
31. ### appreciate any help finding s of e squared

I have been working on this problem for quite a while with my TI 84 plus and am in need of some guidance if possible. I was also given a different...

• Replies: 2
• Views: 3,384
05-10-2010, 02:42 PM
32. ### Approach to adjusting for multiple testing problem with multiple chi-square tests

Hi, I work in a UK university. Each year finalist students take part in a National Student Survey responding to 30 questions on aspects of their...

• Replies: 0
• Views: 1,133
07-14-2015, 05:00 AM
33. ### appropiate post hoc test

Hi May someone help me with this? I have done a 2 factor univariate ANOVA, although some of my data is not still normally distributed (Kolmogorov...

• Replies: 1
• Views: 3,297
05-10-2006, 03:38 PM
34. ### appropiate transformation for exponential relationship

• Replies: 0
• Views: 2,358
10-10-2008, 04:10 PM
35. ### Appropriate analysis

Hi, Im looking at running a non-parametric test on ranked data. I have two variables. Each subject completed two conditions which included 3...

• Replies: 1
• Views: 1,499
06-21-2013, 09:20 AM
36. ### Appropriate analysis for Likert scale items.

Hey, everyone! Quick question regarding analysis of survey (which aims to asses women's views and attitudes towards offenders with mental health...

• Replies: 7
• Views: 2,140
03-24-2014, 02:47 PM
37. ### Appropriate data for ANOVA?

Hey all, I am beginning a study of gesturing. My research question is whether participants employ gestures in ways that are sensitive to recipient...

• Replies: 5
• Views: 2,573
11-11-2008, 10:16 PM
38. ### Appropriate graphical representation of a sample?

Hi guys, its been a few years since I took statistics classes in college, so my memory is awfully fuzzy. I have a small set of data (30 points) that...

• Replies: 1
• Views: 1,142
07-18-2013, 01:29 PM
39. ### Appropriate Grouping of Data

I have a problem where there is a control and experimental group. Each group has 2 subjects and each of the subjects has 5 replicate values. I...

• Replies: 6
• Views: 1,364
04-23-2015, 03:14 PM
40. ### Appropriate link-function in a Poisson Model

Hi, does somebody know why the log-link function is always assumed to be the "standard" link function in Poisson models? E.g. regarding count data...

• Replies: 0
• Views: 1,125
12-15-2015, 05:53 AM
41. ### appropriate multiple comparison test following several chi square

Dear all, I have the following problem: there are three groups of people in my analysis and I have 17 domains that are basically questions (yes or...

• Replies: 8
• Views: 1,664
09-01-2014, 04:12 PM
42. ### Appropriate pathway to take in this biochemistry-related question?

http://imgur.com/VrrqO04 Thank you!

• Replies: 2
• Views: 1,244
11-27-2013, 10:23 AM
43. ### Appropriate SAS test for comparing within and between seasons?

I am a new animal science/agronomy grad student trying to analyze my data. I have a very limited stats background (one class with an interesting...

• Replies: 0
• Views: 758
01-16-2015, 03:54 PM
44. ### Appropriate Statistical Test - Guidance

Dear Talkstats Member, I am doing Msc and now in the midst of analyzing data. Since i have no background in statistics, i found it quit...

• Replies: 3
• Views: 2,660
03-30-2011, 11:34 PM
45. ### Appropriate statistical test for lesion distribution

Hi, I have 2D image data of lesions in independent samples of diseased tissue. I would like to know whether the total lesion area is greater in...

• Replies: 1
• Views: 982
08-15-2015, 11:31 AM
46. ### Appropriate statistical test for RIFLE Criteria

I need help choosing the appropriate statistical test for my primary endpoint of my resident research project and thought I'd join a forum to help...

• Replies: 1
• Views: 1,160
04-14-2014, 05:37 PM
47. ### Appropriate statistical test to use- Fishers exact?

Hi. I was hoping someone would be able to help me where my supervisors can't! I'm writing up my M.Sc. dissertation and really stuck on the...

• Replies: 0
• Views: 1,962
07-29-2012, 10:21 PM
48. ### Appropriate statistical test?

Hi, I apologise because I'm sure this question must have been asked already but I couldn't find anything from a quick search. I need to compare...

• Replies: 0
• Views: 1,037
01-20-2014, 08:21 AM
49. ### Appropriate statistical tool

I am looking for the appropriate statistical methods to apply to a test. We are doing a study in which we have triplicate data sets and are looking...

• Replies: 0
• Views: 2,852
08-09-2010, 04:56 PM
50. ### Appropriate Test

Dear All, I have a data with subjects of three visits information. In the first visit they received placebo and in the second and...

• Replies: 3
• Views: 2,032
07-19-2007, 01:22 AM
51. ### Appropriate test

Hi everyone we did an experimnt at school on the foraging behaviour of stickleback fish . High density daphnia or low density. There was 5 fish and i...

• Replies: 3
• Views: 2,118
11-29-2007, 11:24 AM
52. ### Appropriate test for non-normal data with less than two groups?

Hello, My question is about what kind of statistical test I can use with my data. I have two groups of 6 participants (one control group and one...

• Replies: 2
• Views: 1,035
03-28-2017, 04:19 AM
53. ### Appropriate test for two sets of answers - Chi squared?

I am doing a critical analysis of a published research paper which contains some descriptive stats, but little statistical analysis. I was wondering...

• Replies: 4
• Views: 1,865
10-20-2011, 11:24 PM
54. ### appropriate test?

Hello. I am a tourism student and I have a course work with these data set: - 1 year stat of Visitors by country of origin - 1 year stat of...

• Replies: 0
• Views: 1,511
10-07-2010, 03:12 PM
55. ### Appropriate tests for hypotheses

Hi everyone Just after some assistance as I'm having some trouble knowing which statistical tests to use to test some of the hypotheses for my...

• Replies: 2
• Views: 2,208
07-29-2011, 08:11 PM
56. ### Appropriate tests to use? ANOVA and Friedman two way ANOVAby ranks?

Hi there, I am completely stumped on which tests to use for a study that I am working on. Basically, I have two groups, 1 & 2. The two groups are...

• Replies: 2
• Views: 3,215
10-09-2011, 07:39 AM
57. ### Appropriate to use time as covariable in ANCOVA?

Hello stats people, I need to assess whether the rate of increase (in soil carbon) differs significantly between two groups (forests). I believe...

• Replies: 11
• Views: 2,888
09-30-2012, 10:50 PM

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