# data

1. ### Question about data scale

Hello, I have a survey with the following question: "Which price do you think is fair for Product A?" Less than 14.95: (Enter a value here) 14.95 19.95 24.95 29.95 34.95 More than 34.95: (Enter a value here) What type of data do i get from this and which analysis can I conduct? I am assuming...
2. ### Does adding data to a data set affect the standard deviation?

Hi, quite a basic question here but I can't find a solid answer. If I had a data set of 10 points, and I chose to add 4 new data points to it for example, can I use the same original standard deviation? Or must I re-calculate it? Is it possible to add the new data points with a specific number...
3. ### Help on data correctness for ANOVA

Hello friends, My aim is to study the nature of length of stay of vechicles in a parking lot. A day is split to 3 sessions namely Morning - 10am to 2pm, Afternoon - 2 pm to 6 pm, Evening 6pm to 10pm. Given the In time and Out time of a sample size of 9000 vechicles, I need to statistically...
4. ### Fixing different demographics behaviour on survey data

Currently collecting employment/working satisfaction data from survey at different countries. Same set of questions is used. I have come across that people from some countries tend to be more optimistic/pessimistic than others. How can I take their answering behaviour into consideration when...
5. ### Paired or Unpaired?

I recently concluded a clinical research which compared a certain parameter of one eye of a group of individuals to the the same parameter of the other eye of the same group of individuals. My statistical knowledge says these are unpaired (Independent) samples and as the parameter measured was a...
6. ### Can I use estimated data in Bayesian updating?

Hi guys, I am doing a Bayesian updating for housing construction defects. But the observed data is very limited and incomplete. My model is beta binomial. beta (a1, a2) is my prior for defect rate for roof connections. The number of defects in n connections follow binomial (n, p), where p is...
7. ### How to create a buying profile from various statistics

Good morning, I have some information on demographics, population density, income and others per zone. For example, I have all this data per county, and I also have some data that says that people from age X to Y shop 60% online, while people from Y to Z age shop only a 50% online. I have same...
8. ### Need Help with Data for Regression

Hi, I am working on a replication of a research paper where I have to compile my own data to copy the regression done in the research paper. I have never done a regression like this before and I am not sure about the data I chose - I would appreciate any help and input. All the variables I...
9. ### How would you enter this data?

I have to do a t-test (it doesn't say which type of t-test) in SPSS about the olfactory scores of smokers and non-smokers. For smokers, we are given the scores so I know how to enter that in SPSS. For non-smokers, we are not given the scores, it simply says “On a test of olfactory sensitivity...
10. ### How to present transformed data that shows individual data points

Hello! This is my first post and I'm hoping to get some help on how to work with transformed data for a research publication I am writing up. Basically what we did was monitor the levels of a particular protein after traumatic brain injury. Our sample sizes were originally about 25 but due...
11. ### How should i use this dataset?

Hi all! I'm trying to figure out which way I should deal with my data I have data sampled from 2 "general areas" on opposite sides of the country. in these general areas there are roughly 50 trakts placed (in a grid, random staring point) A trakt contain 16 sample plots. Trakts have been...
12. ### Anova with data reduction? (Experimental design)

Hi, this is my first post, I hope to do nothing wrong like posting in the wrong area.:pag It happens that I did an experiment where I have a control group and an experimental one, I am comparing means with ANOVA, and I want to reduce the data by eliminating 5% of the lower and higher data...
13. ### Analysis of data - how to find the most relevant factors

Solved. Sorry... You can delete it.
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 against fatigue. I am questioning people about what mitigation strategies against fatigue they have experienced as helpful. It is a multiple...
15. ### S-shapec urve goodness of fit

hi, I'm looking for a statistical test to prove (statistically) that the cumulative curve is S-shape When I try to look for answer I get 2 types of answers: 1. test to prove that the data is from normal distribution. it is true that the cumulative curve of a normal distribution is...
16. ### Help!! a little confused with ANOVA, should be easy

Dear all, I would like to ask for your help in determining which test I should run for my samples. Here is my data: I have 4 water samples of Nitrite (mg/l) from 3 sites. Site1:.00171, .00206, .00031, .00066 Site3:.00136, .00206, .00415, .00275 Site4:.02193, .02298, .02681, .01531 My...
17. ### Normalising Search Data

Hi Guys, Just want to start by saying great forums, some really useful stuff on here! I'm basically a statistics novice, though i did do a few subjects at uni many moons ago, so forgive me if I ask some stupid questions. And apologies if this isn't in the right area. I'm working on a data...
18. ### For EFA, is there a syntax to compute factor scores when missing data?

I know there is a way to compute a sum when data are missing (e.g., I have 8 variables I want to sum and I'm okay if 2 are missing so I would use sum.6(var1, var2, var3,...). Is there also a way to compute factor scores when I have missing data? Is there any reason why I should NOT compute a...
19. ### Data Analysis visualization

Hi Everyone, Lately I have been searching a data analyzer tool/software, which would also present my data in a better way. I came across DataPlay (https://dataplay.us/) software product and started using it for a month. I think this was the product I was looking for, cause it both analyzes...
20. ### generating average with missing more than X values

hi all, let's say i want to take the average of 5 scores for class tests for each student in a class. the data looks like the below EXCEPT averagescore. That is the column I want to generate! student test1 test2 test3 test4 test5 averagescore 1 7 8 NA 7 9...