Questions tagged [percentage]

Number or ratio expressed as a portion of 100

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63 views

measure for jobs/complaints ratio

I have a number of jobs in a database which can receive complaints. A job can receive several complaints and a job has an associated supplier. I would like to identify the worst performing suppliers. ...
668 views

Statistic test on percentage correct classified by emotion recognition

For a potential emotion recognition bachelor-project I was wondering what statistical test I have to perform when I get my results to test whether it's significant. I will be testing which combination ...
33 views

How do I convert a survey scale [7-point, -3 to 3] to a 7-point scale [1-7]?

I am working with a survey scale that is from -3 to 3. I have a mean value of .94 and I want to identify if there are ceiling effects, but I need to change the entire scale to 1-7 in order to ...
47 views

Modelling percentage and proportion data with GLM's [duplicate]

I would like a simple answer, if there is one, to a question I cannot seem to find on here. What is the best way to model percentages? Say I have a glass that is empty and I fill it with liquid ...
14 views

Comparing percentiles of datasets of varying sizes

I am trying to build a simple anomaly detection solution. I have a dataset with normal observations. It has about a 100 values. I calculate the ...
20 views

590 views

SPSS Chi-Square using only percentages

Here's the data that I have (percentages only) Gender: M = 60% F = 40% Expected: M = 50% F = 50% How do I use SPSS to run $\chi^2$ test since I only have the percentages?
96 views

On standardisation and the use of percentages in linear regression

After browsing in CV for some answers, I haven't really found what I am looking for. I am planning to run a regression (on Stata) between the client satisfaction (Y) and the provider satisfaction (...
205 views

transformation of response variable which is in percentage

Here's my data. https://www.dropbox.com/s/puf57efqkdl8zt0/data.csv?dl=0 It's too big, therefore I did not know to use the dput(data) command. I am using a ...
30 views

Method to predict outcome as percentage of two categories? [duplicate]

In real world example I have elemental composition data for groundwater, which is known to be coming from two sources. I have control data where all predictors are from source A and data where all ...
61 views

Comparing percentages of 10 different groups without access to the raw data

I have access to the percentages of referring to "X" for 10 different ethnic groups. Let's say, A1 to A10 as shown below A1: 9.22 A2: 11.40 A3: 12.68 A4: 17.89 A5: 19.53 A6: 19.84 A7: 29.34 A8: 30.77 ...
51 views

Sum of all covariables value per patient is 1

I have a database with only 27 patients, and each patient was analyzed for the more than 119 different bacterial species. We test the percentage of each bacterial species among all the 119 species for ...
88 views

How many times more likely are the members of Group A to be diagnosed with virus X compared to the members of Group B?

Suppose Group A makes up an estimated 2% of the population and Group B makes up an estimated 98% of the population (Group B consists of everyone who is not in Group A). However, Group A accounted for ...
489 views

Regression with percentage-point change as dependent variable

I want to look at the correlation between a change in prevalence of a particular outcome (expressed in percentage points) and a continuous predictor variable which is an index. So for the response ...
135 views

Aggregation system for percentage Key Performance Indicators (KPIs)

I need some suggestions for an issue regarding our business intelligence (BI) system, percentage Key Performance Indicators (KPIs) and average values. I am using a BI system for our organization, ...
101 views

Should I treat my data as ordinal or interval?

I conducted a survey where I asked respondents how much they reduced their financial overhead, based on the following options: 0% (coded as 0 in my dataset) 1-10% (coded as 1) 11-25% (coded as 2, etc....
720 views

how do I compare percentages and show they are significantly different?

Here is my data: I have two groups (experimental group and control group)voting for 6 different actions, listed as A, B, C, D, E, F. The sample size of the 2 groups are different. Therefore, I am ...
97 views

Inferential statistics for vector of percentages

I'm getting confused by this and was wondering if someone can enlighten me: I have a random sample consisting of 50 percentages. Each percentage can take on any value between 0% and 100% inclusive ...
196 views

Using a t-test for paired proportions

This is something that I'm having trouble verifying on Google, so I'm asking here as a sanity check. I have data collected randomly (not equally) over time for different users. To determine if some ...
64 views

“Controlling” for population/sample sizes when looking at rates?

I have a pretty basic understanding of statistics, so please bear with me: I'm making an index (ranking) of sector performance I am including indicators such as "Percent of profitable firms in sector"...
135 views

Can you calculate descriptive statistics (SD, SE particularly) from percentages and ratios?

I'm a cell biologist and a lot of my data is expressed as a fraction (percentage) of the total number of cells in a single experiment in a number of separate categories (generally 5 or so). The number ...
1k views

Regression with percentage change?

As the education rating of a Canadian city decreases by $1\%$, the crime rating will change by ___ (make sure you include the negative sign if warranted) The line of the equation I found to be \$\hat{...
517 views

Should descriptive statistics on percentages data be weighted?

I'm trying to put together descriptive statistics for a set of differently sized groups of students. For each group of students, let's say I know the # of students who are left handed. I'd like to ...
53 views

how to compare groups and percentages within

I am new to statistics and would really appreciate help. The people within the groups are different - how do I compare the percentages to see if there is a statistical significance between the groups ...
186 views

How to model overdispersed percentage data?

this is my first post so let me know if you need more information. This is a pretty general question for now, but I am not sure how to approach this. The data I have is from an ecological study. In ...
742 views

ANOVA on percentages

Please read edit 3 first I am trying to find out the significant factors in a dataset of percentages, a sample of which are below. The difficulty is that the data violates the assumptions of ANOVA, ...
458 views

Comparing Percentages Between 2 Groups When Each Group's Total Percentage Exceeds 100

I am comparing the rate of specific Response Patterns A through L among students in Group 1 vs. Group 2 (rates for the first five patterns are exemplified in the table). These are response patterns ...
164 views

Statistical significance of differences between percentages

I have a problem annoying me. I have associative word lists which were formed by 150 participant's answers to a given word. At the same time, I gathered information about each word's valance with a 5 ...
65 views

Wording for comparing two percentages

I am trying to figure out how to make a correct statement with two values: X = 59.8% Y = 26.7% Is this correct? ...
32 views

Relationship between coefficient of dispersion and percent of data points above the median?

If I know the coefficient of dispersion and the median of a data set, is it possible for me to then calculate the percent of data points that are above the median? For example, what if the median is ...
305 views

Can I use a binomial model with logit link function when dealing with continuous proportions?

I have continuous proportion data (i.e. ranges from 0 to 1). Or it could be percentage too if multiplied by 100. This is the proportion/percentage of overlap in home range between animals, therefore I ...