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Are the samples from the same population?
The main difference between a population and sample has to do with how observations are assigned to the data set. A population includes all of the elements from a set of data. A sample consists one or more observations drawn from the population.
Can you combine two surveys in qualtrics?
Both surveys have identical questions and response choices. both surveys have text responses, multiple choice responses and matrix responses.
Can you combine surveys in qualtrics?
https://siue.qualtrics.com Combining data from two identical surveys 1. Select the survey you would like to use to hold the combined data. If you would like to preserve the two data sets separately, then create a third copy of the survey to hold the combined data.
When one examines the entire population instead of a subgroup of the population this is called a?
Transcribed image text: When one examines the entire population instead of a subgroup of the population, this is called a : Census.
When is a sample from two populations independent?
The samples from two populations are independent if the samples selected from one of the populations has no relationship with the samples selected from the other population.
How can we compare two types of samples?
The two types of samples require a different theory to construct a confidence interval and develop a hypothesis test. We consider each case separately, beginning with independent samples.
What’s the second step in comparing two populations?
Therefore, the second step is to determine if we are in a situation where the population standard deviations are the same or if they are different. It is important to be able to distinguish between an independent sample or a dependent sample.
What does it mean when sample is dependent on another sample?
The samples are dependent (also called paired data) if each measurement in one sample is matched or paired with a particular measurement in the other sample. Another way to consider this is how many measurements are taken off of each subject. If only one measurement, then independent; if two measurements, then paired.