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Questions tagged [comparison]

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How does the rejection sampling method work in layman's terms?

Suppose that I have no knowledge of sampling methods and that I have some knowledge of probability theory (e.g. probability distribution and marginal distribution). How would you explain the ...
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Sample Size Experiment Proportion Failure

I have N machines and I want to implement an experiment E in them in order to improve their proportion of failures. However, I’m not sure yet if this experiment E will increase, decrease or do ...
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Sample Size Proportion Comparison Test Finite Population

How can I calculate sample sizes for a Prorportion Comparison Teste of Finite Populations? Is there a function in R? Basically, I want to know what is the finite population version formula for the ...
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Comparing two groups (nested) and differences between multiple dependent variables (nominal and continuous)

What is the best method to compare two groups in this situation? For example, lets say I want to compare and find differences between men and women. The independent variables can be nominal (own a car,...
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Ways to compare Likert ratings with non-equal total response count

I have Likert response data like this in which the surveyor asked 188 raters to rate on a 1-5 Likert scale for 6 different stories with the question, "I'd like to hear more stories like this". Some of ...
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Comparing 3 raster maps of continuous surface data in R

I have 3 maps representing spatial distribution in hunting pressure. These maps were derived using different methods and I am now interested in comparing them to assess how they might differ/agree ...
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Comparison of multiple spatial model predicted outputs

I am performing some species distribution model comparisons under different sampling strategies. I have two sampling constraints with five levels (e.g. presence sample sizes), for a total of 25 ...
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Comparing gas pipe failure rates by soil type

I'm trying to establish whether certain soil types are associated with (statistically significant) higher rates of gas pipe failure. I have a set of polygons representing different soil ...
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How to compare predictions made by two different models?

Please help me understand this: There's something called the MAGGIC Risk Calculator for Heart Failure for predicting adverse outcomes in patients with heart failure....
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Comparing the mean of predicted values for a misspecified model against the mean of the observed values

I have a regression that I have run on average ratings for some products (dependent variable) and their characteristics (Model 1). I have reason to believe there is a prejudice against a specific set ...
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comparison of two independent data of same location using statistical test

I have elevation values of a geographical area with their lattitude and longitude, derived from two different satellites. How can I compare these data using some statiscal test?
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How to compare two random intercept beta regression model for one predictor on two different outcomes?

I have a clustered data set ,where two outcomes variables are rate/proportion type (Y1, Y2) and a binary predictor variable (X1). I am fitting random intercept beta regression for adjusting the ...
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How to compare two mediation models?

I ran a mediation study using three dispositional measures, each measured with a scale. The order of scales was in line with my assumed model, so A --> B --> C. Using SPSS and PROCESS the results ...
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Determine performance difference after software changes

Situation: For our software package, I want to check if there is performance degradation after software changes. Therefore we measure multiple operations and save the duration in milliseconds. There ...
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Compare accuracy between tools using k-fold cross validation, each tool is tested with different k values

I'm working on a new way to do the classification in a supervised way and I want to compare its accuracy to some related works. These works are using the same data set and they are testing their ...
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1answer
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Technique for compare treatments ANOVA, t test

I have the next problem: I need to compare three treatments $A, B$ and $C$ for a type of pain. Every treatment has been used in 10 different patients. and every treatment is measured with two ...