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0
votes
0answers
21 views
website performance measurement error
I have 2 measurements from my website performance measurement tool ( 6 months data with 12 points per day). Both have some error as one of them is overestimating the response time and one is ...
1
vote
0answers
19 views
I need a calculator that uses a contigency table of 11x6 [duplicate]
I need a calculator that uses a contigency table of 11x6. Anyone knows where I can find a calculator for my case? Thanks in advance.
3
votes
1answer
92 views
How to Calculate a Z-Score from Power Log Distributions
Please forgive me if the question is non-sensical as I only have a elementary knowledge of statistics, and I have no idea where to start.
I want to perform an analysis of some web analytics ...
-1
votes
1answer
29 views
Repository of datasets with rich metadata search / export [closed]
Are there some repository where one can query based on various metadata ?
For instance, if you go to uci datasets you can select based on the values of a few metadata.
Is there any other website ...
4
votes
2answers
64 views
Testing significance of a data point against an data set
Background
I am currently testing conversions on a web page and would like to test if the changes I made yesterday produced a significant change in conversions.
The Data Set
For each day I test, I ...
0
votes
0answers
60 views
Determine if a statistically significant preference exists
I'm trying to determine if there is any statistically significant preference for objects (other content, products, etc) rendered in a module in a web page. I'm trying to create a simple experiment to ...
0
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0answers
36 views
Data sets on the Social web [closed]
Are there any data sets available having user related information from their Facebook , Twitter and other discussion forums on the Social web. I am looking for the data set which has information about ...
11
votes
1answer
248 views
Do unique visitors to a website follow a power law?
Suppose I have an ordered vector where the first element is the number of visits to a website in a given period of time by the unique IP with the highest number of visits, the second element is the ...
2
votes
2answers
112 views
Simple extrapolation of web traffic
I have the following data for web traffic in Excel
June 88,147
July 111,839
August 93,148
September 93,069
October 101,881
November 97,345
I can do a chart with a trend line and a linear ...
49
votes
6answers
5k views
Model for predicting number of Youtube views of Gangnam Style
PSY's music video "Gangnam style" is popular, after a little more than 2 months it has about 540 million viewers. I learned this from my preteen children at dinner last week and soon the discussion ...
0
votes
0answers
35 views
How can I run a crawler on a large number of computers? [closed]
As part of my research I'm trying to classify text based on it's style (font-family for now), my data is based web pages, so I wrote a client/server application - the client is a crawler which gathers ...
2
votes
1answer
339 views
any alternative to kaggle for data mining & analysis competitions and training? [closed]
Are there any alternative to www.kaggle.com to test abilities for data mining? Or how can I find my own projects to test myself on data mining projects?
Kaggle is a data mining community that ...
0
votes
0answers
95 views
Measuring responsiveness and memory usage of a web application
We have a in house web-app that we tested for Responsiveness and memory usage. Reason was two fold. One its never been bench-marked and second was that the app itself in its earlier version was slow.
...
2
votes
3answers
167 views
High-Frequency Time-Series Forecast With A Lower Bound
I am helping a friend with a data project. He's interested in building a canary-in-the-coal-mine alert system for his website which tells him when the number of users dips below some critical lower ...
2
votes
1answer
102 views
What distribution is most commonly used to model server response time?
I have a servlet-based application wherein I measure the time taken to complete each request to that servlet. I already compute simple statistics like the mean and maximum; I'd like to produce some ...
8
votes
2answers
356 views
Math behind multivariate testing for website optimization
I am looking for theoretical resources (books, tutorials, etc.) to learn about making sound statistical inferences given (plenty of) multivariate website conversion data.
I'm after the math involved, ...
3
votes
3answers
1k views
Is an online chi square calculator available for larger tables?
I am looking for an online Chi square calculator. I can see there are many for 2x2 tables. I am looking for an online calculator which can accommodate dimensions beyond 2x2.
1
vote
0answers
316 views
Calculate peak concurrent users on a website
I am looking at setting up some website load testing scripts and need some help in finding a formula to estimate how many concurrent users are browsing a website at peak times, based on common metrics ...
2
votes
1answer
117 views
Can you recommend an online survey platform for 5k+ participants?
I am planning to perform an online behavioral survey across a nationwide sample, and I expect several thousand responses. I expect to have not that many questions (perhaps 3 pages, 8 qs each), ...
8
votes
4answers
222 views
Internet statistics resources suitable for psychology students doing research
I am working on a new webpage for my part-time job as a methodological/statistical consultant for (psychology) students at my university. On this website I would like to place several links to online ...
1
vote
0answers
233 views
Does anyone use the web based spreadsheet EditGrid.com? [closed]
I have been looking for an alternative to Google Docs as a web based spreadsheet application as my employer's corporate firewall now blocks this application. I kicked around a few alternatives such ...
