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# Forum: General Discussion

Other topics related to statistics.

1. ### Sticky: Interesting (non-research) Statistics Articles

We all see interesting articles online in various places. I figured it would be nice to have a place to share these articles. I'll start with an...

• Replies: 14
• Views: 16,925
07-27-2016, 04:37 AM
2. ### Sticky: Why are so few questions being answered?

I am a software developer, currently in graduate school for general mathematics, who intends a career in statistical programming. I have begun...

• Replies: 19
• Views: 31,966
06-03-2015, 05:41 PM
3. ### Sticky: Math Typesetting in LaTex

Talk Stats forum now supports math typesetting in LaTex. We have added two tags math] and /math]. Include your LaTex code within the tags and...

• Replies: 3
• Views: 19,967
04-09-2010, 09:24 AM
1. ### Sample Size comparison

I am trying to, in Excel, compare two samples of the same material that are different sizes to compare the relative defect rate. Can anyone help me...

• Replies: 4
• Views: 505
09-18-2017, 03:16 PM
2. ### Need formula to determine size of group

I have 16 questions in an exam that chooses 3 questions at random each time the exam is presented. How many times must the exam be taken in order to...

• Replies: 0
• Views: 472
08-28-2017, 01:58 PM
3. ### Random numbers

Generally, I use NORMDIST() function to generate random numbers giving Mean and SD of my choice (based on the data set I have). Is there any way...

• Replies: 12
• Views: 11,969
08-11-2017, 09:20 AM
4. ### Non Random Sampling

I have two spatial populations, one that is declustered and smoothed and I want to use that as a complete population. I have the original...

• Replies: 0
• Views: 649
07-11-2017, 03:29 PM
5. ### Benefits of ISO Certification for Business?

• Replies: 0
• Views: 1,054
06-12-2017, 01:00 PM
6. ### Need help understanding how to get non-statistical people to understand results

Hey, I want to see if there a way to pull some information from this report to see if there is a way that I can express it as a % so it is easier...

• Replies: 0
• Views: 2,135
05-12-2017, 07:04 PM
7. ### Test post for Greta

Greta can you see this

• Replies: 1
• Views: 1,431
05-06-2017, 02:42 PM
8. ### How to know which ML algorithm to choose

I've been reading and practicing R and various machine learning algorithms for the past several months now. One thing I'm not so sure about still...

• Replies: 6
• Views: 1,828
04-29-2017, 01:20 PM
9. ### Gender as a mediatior

When would it ever be good practice to dichotomize variables when assessing interaction effects?

• Replies: 1
• Views: 928
04-23-2017, 05:06 PM
10. ### When should you normalize/scale your data?

I understand the purpose of normalizing/scaling, but I don't know when I should or should not do it when working with machine learning algorithms. ...

• Replies: 0
• Views: 1,181
04-08-2017, 05:09 PM
11. ### Moderation or Mediation?

Hi, sorry i'm a psychology student and still new to advanced statistics. For my dissertation i'm thinking of looking at the relationship between...

• Replies: 2
• Views: 888
04-07-2017, 10:42 AM
12. ### How to generate data that meets two requirments

Hello I am trying to generate a random set of data that should have a certain shape, lets say a normal distribution shape, where its maximum value...

• Replies: 3
• Views: 1,866
02-25-2017, 07:01 PM
13. ### Beginner Help

Hi, Need a bit of help with appropriate statistical test to use. I have six groups in which each individual achieves a score in a amount of...

• Replies: 0
• Views: 1,441
02-22-2017, 02:45 PM
14. ### Stats Help needed for a project!

Hi Stats Fans, I need your help, as I am stuck with data I collected for a project. I am currently gathering responses about mitigation strategies...

• Replies: 6
• Views: 3,799
01-29-2017, 04:15 AM
15. ### Nonlinear least squares method and its assumptions

I know that when estimating and using ordinary least squares, irregular terms have to be iid N(0, σ2 ). Now I want to use nonlinear least squares...

• Replies: 0
• Views: 4,635
12-13-2016, 07:40 AM
16. ### Best Calculator?

New to Statistics and new to the forum. I am finishing an Into to Stats class and will be taking another one next year. At this time I'm...

• Replies: 2
• Views: 4,278
12-08-2016, 08:24 PM
17. ### Analyzing & weighing satisfaction survey data results.

I have a question for the group, say I'm a restaurant owner that distributes a satisfaction survey to my customers, asking them to rate multiple...

• Replies: 1
• Views: 4,801
11-29-2016, 11:59 AM
18. ### Newbie HR guy - how to best forecast retirements in company

Hi - I am a HR professional looking to self learn statistical modeling for new responsibilities at work..Need to forecast no. of employees who may...

• Replies: 0
• Views: 2,553
11-24-2016, 01:25 PM
19. ### Poll: Employer using Timetracking data to compare averages is not statistically sound?

I work at a tropical fish wholsaler, on land as an aquarist. My job is to keep the animals alive, disease-free, happy and healthy. We have over 15...

• Replies: 1
• Views: 3,542
11-23-2016, 02:16 AM
20. ### I''ll appreciate your help! TY

Hello, I am selling books in 3 different locations and what I do is order books from other places via online then re-sell. I would just like to...

• Replies: 2
• Views: 4,108
10-19-2016, 01:35 PM
21. ### How to get started with machine learning techniques

I'm about a couple months into learning machine learning concepts and would really like general guidance on how to proceed with analysis' using R. ...

• Replies: 4
• Views: 3,658
10-14-2016, 11:49 AM
22. ### Candy Preference and Age

I was getting ready to go to bed last night and my wife asked me what type of chocolate candy I prefer from a list of 4, then what type of sugary...

• Replies: 3
• Views: 3,587
10-14-2016, 06:23 AM
23. ### Machine learning books

Hey guys, im currently writing my masters thesis using predictive tools for toxicity (structure activity relationship as well as all kinds of...

• Replies: 8
• Views: 4,499
10-03-2016, 07:22 PM
24. ### Benefits of Understanding Statistics

Do you feel that understanding statistics at minimum on the undergraduate level benefits you personally in any way other than just for the sake of...

• Replies: 14
• Views: 6,312
09-11-2016, 11:21 AM
25. ### The choice of the method

Hi, Just would like to ask for some of your valuable advice! I am working on the project which would like to use the small sample to estimate...

• Replies: 0
• Views: 3,068
09-02-2016, 09:48 PM
26. ### Game theory? Optimal play in a social deduction game (Werewolf/Mafia)

Anyone interested in helping me with a problem I've got? It relates to the group social deduction game "Werewolf" (a variant on 'Mafia'),...

• Replies: 0
• Views: 3,416
08-14-2016, 01:54 AM
27. ### Missing Data Bias References

Hi there. I am currently writing a university level statistics dissertation. As part of the project I collected data on the personal characteristics...

• Replies: 0
• Views: 2,649
07-31-2016, 02:55 PM
28. ### How does the Central Limit Theorem explain the empirical rule? student question

How does the Central Limit Theorem explain the empirical rule? engineering student in need of some conceptual assistance? thanks

• Replies: 9
• Views: 4,538
07-30-2016, 10:52 PM
29. ### Your suggestion to answer data analysis question - Why ?

....................

• Replies: 0
• Views: 3,042
07-30-2016, 12:20 PM
30. ### 1000+ posts, congrats vinux!

Just a Thread to congratulate vinux on his 1000th post.:eek: He's a person who is always ready to selflessly help the hundreds of people who come...

• Replies: 5
• Views: 6,646
07-20-2016, 06:36 PM
31. ### Stationarity of time series and VAR model

Hello, I have two variables, one is stationary I(0) and one is non-stationary I(1). Is it possible to make VAR model for these two variables if...

• Replies: 0
• Views: 2,846
06-20-2016, 07:27 AM
32. ### Binomial distribution and rolling dice

hello! I play a tabletop game and we roll dice for game outcomes. The dice have 8 sides and a certain result (lets call it a success) appears on 2...

• Replies: 1
• Views: 3,326
06-17-2016, 05:12 PM
33. ### Methods for data sample consistency

Hello, I would like to ask you for your opinion: I have one data sample, let´s say with 600 units used for calculating some statistics (for...

• Replies: 0
• Views: 2,460
05-31-2016, 02:17 AM
34. ### which stats test

I am trying to analyse my data but I do not know which stats test to apply to determine any relationship between results. I have ten units across a...

• Replies: 0
• Views: 2,970
05-30-2016, 08:19 AM
35. ### Calculated statistic for the college demographic and money spent on food?

Im working on the marketing portion of my business plan and am having a troublesome time locating any information specifying the college demographic...

• Replies: 0
• Views: 2,858
05-28-2016, 02:53 PM
36. ### Discrete labour aupply model

I want to use that model. I dont undestand it. Can anyone help me? In simple words?

• Replies: 1
• Views: 3,280
05-27-2016, 02:22 AM
37. ### Small samples and validity of scientific research

I often hear semi-informed people dismissing scientific studies that they don't like on the basis that the study used a "small" sample size. Rarely...

• Replies: 4
• Views: 3,037
05-09-2016, 12:54 PM
38. ### How to express the lack of statistical significance in Discussion.

Hi! my manuscript has been accepted to review. However, reviewers have some doubts about the next expression: ". Importantly, the lack of...

• Replies: 3
• Views: 3,041
05-09-2016, 09:15 AM
39. ### Poll: Casino Bonuses, Variance and expected value

I am looking to get some views on this from people on here, and would be interested to see what people think. I am an engineer. been a few years...

• Replies: 0
• Views: 2,865
05-02-2016, 07:08 PM
40. ### Pregnancy rate of unprotected sex between a young couple

This is an interesting study: "...that recruited 782 young couples who did not use artificial contraception and who carefully recorded the day of...

• Replies: 1
• Views: 6,395
04-22-2016, 06:09 AM
41. ### Statistical Errors in Research

http://www.smw.ch/docs/pdf200x/2007/03/smw-11587.pdf What are your opinions on this? How can possible even be? Aren't there supposed to be expert...

• Replies: 4
• Views: 4,048
04-20-2016, 04:09 PM
42. ### Discussion limitations of a study

Hi, I am writing a manuscript about a cohort study. I have not detect any statistical difference in some parameters in t-student but the number of...

• Replies: 0
• Views: 3,070
04-19-2016, 05:01 AM
43. ### Alcohol content in blood

I'm trying to code a programme to determine the maximum alcohol content in the blood during an evening of drinking as well as the time until one is...

• Replies: 8
• Views: 4,217
03-27-2016, 04:26 AM
44. ### Study design question- adjust for other exposure variables or examine subsets?

Figured it out. So deleted I guess

• Replies: 1
• Views: 2,953
03-27-2016, 03:23 AM
45. ### Combination, Permutation or Something Different?

Hi I'm working on a project but I'm not sure if I'm dealing with a Combination, Permutation or something different. I have 5 separate "select...

• Replies: 4
• Views: 3,389
03-26-2016, 09:18 AM
46. ### The ASA's statement on p-values is FINALLY HERE

even the magic of Disney World can't prevent me from nerding things out a little bit, especially when something THIS BIG. just came out. as some...

• Replies: 4
• Views: 4,695
03-08-2016, 03:21 PM
47. ### TUTORIAL Data Envelopment Analysis (DEA) WINDEAP 2.1 (DEAP 2.1 FOR WINDOWS)

A Data Envelopment Analysis (Computer) Program, Win4DEAP (WINDEAP 2.1) provides a convivial Windows front end for DEAP 2.1 written by Tim Coelli

• Replies: 0
• Views: 5,033
03-07-2016, 02:23 AM
48. ### Cool Statistical Term Names

I thought it might be fun to draft a list of cool names for statistical terms/procedures. Since some of us may not be familiar with them or know...

• Replies: 17
• Views: 7,835
03-05-2016, 01:50 PM
49. ### xnvxzo porzmk

ergy Mod note: removed url hnzf

• Replies: 2
• Views: 3,201
03-03-2016, 10:46 PM
50. ### Regression Ridge with NCSS

Regression Ridge with NCSS. The following figure shows a portion of the ridge regression output in NCSS (NCSS Statistical Software, 2007).

• Replies: 0
• Views: 3,498
02-19-2016, 02:09 AM
51. ### read DiCOM images using R

I have some DICOM format images for my project. I need tips to read it by using R and how to analyse the images?

• Replies: 0
• Views: 3,286
02-17-2016, 12:35 AM
52. ### how to test the significance of two Machine learning models with one dataset

HI all, am conducting research to prove the accuracy of Neural network greater than Logisitic then combine it with Genetic Algorithm (GA), so I...

• Replies: 2
• Views: 3,458
02-12-2016, 02:20 PM
53. ### Which statistic technique should I use?

I want to test relationship between an ordinal dependent variable and 3 independent variables: 2 ordinal and 1 categorical (7 categories). Is it...

• Replies: 0
• Views: 2,849
02-02-2016, 08:36 PM
54. ### Could Laplace's Demon be considered a Markov Process?

Hello everyone, I'm a new member. I teach chemistry and publish writing about science, which latter aim has motivated this post. My understanding...

• Replies: 0
• Views: 2,952
01-29-2016, 08:37 AM
55. ### Anybody up for helping out with a boardgame Dice and car probabilities?

Hello all I'm looking to Proto type a game I invented and would sure like to put the math side in line with the creativity Normally that occurs...

• Replies: 2
• Views: 4,126
01-20-2016, 03:06 PM

I would be SO grateful if anyone could help me with my poor stats know-how. My experiment involves data from patient tissue before and after...

• Replies: 8
• Views: 5,938
01-08-2016, 06:42 AM

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