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When testing for differences between two means the sample population are?
Wiki User
∙ 11y ago
You are testing the difference between two means of independent sample and the population variance are not known. from those population you take two samples of two different size n1and n2. what degrees of freedom is appropriate to consider in this case
Wiki User
∙ 11y ago
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What two features must a sample have if it is to accurately represent a population?
differences between quantitative and qualitative data
What is the relationship between a sample and population is statistics?
Information obtained from the sample can be extrapolated to the whole population using statistics.
Difference between Population From a sample?
population is the number of citizens living in a defined geographical area. Sample is a number taken from the population being the sample to research for a topic about the populations' behavior or habit, etc.
Difference between calculating the sample mean and the population mean?
The same basic formula is used to calculate the sample or population mean. The sample mean is x bar and the population mean is mu. Add all the values in the sample or population and divide by the number of data values.
What is the relation between Sample and population regression function?
The sample regression function is a statistical approximation to the population regression function.
Explain the differences between a sample and a population?
A sample consists of a small portion of data when a population is taken from a large amount.
What are the differences between a two sample t-test and ANOVA hypothesis testing?
In ANOVA, what does F=1 mean? What are the differences between a two sample t-test and ANOVA hypothesis testing? When would you use ANOVA at your place of employment, in your education, or in politics?
What two features must a sample have if it is to accurately represent a population?
differences between quantitative and qualitative data
The sum of the differences between sample observations and sample means is what?
always zero
What is the relationship between sample and population?
From a sample of a population, the properties of the population can be inferred.
What is relations between representative sample and population?
A representative sample is a randomly selected subset of the population.
What is the difference between population and statistical population?
Usually, we make a distinction between a population and a sample. The population is the entire set of values or attributes of interest while the sample is a subset of the population.
What is the difference between the sample of the population and the average of the population?
A sample of a population is a subset of the population. The average of the population is a statistical measure for some variable of the population.
What is difference between sample and representative sample?
A sample is any subset of the total population. A representative sample is one that is chosen so that its characteristics are similar to that of the population.
What are the differences between probability sampling and non probability sampling?
In a probability sample, each unit has the same probability of being included in the sample. Equivalently, given a sample size, each sample of that size from the population has the same probability of being selected. This is not true for non-probability sampling.
What is the relationship between a sample and population is statistics?
Information obtained from the sample can be extrapolated to the whole population using statistics.
Briefly explain the differences between a census and a sample survey?
Researchers define a "population" which consists of elements with defined characteristics. Example: All the matriculating students at Providence College. If the researcher studies the entire population as defined above, it is called a "census". If, on the other hand, the researcher takes a subset of the population, a sample, and studies it it will be a sample survey (or study in more general terms.)
