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Does the explanatory variable cause changes in the response variable in a valid sample?
Wiki User
∙ 10y ago
No. It may appear to cause the change because the changes are correlated. However, it is quite possible that changes in both variables are caused by some third, possibly unknown, variable.
No. It may appear to cause the change because the changes are correlated. However, it is quite possible that changes in both variables are caused by some third, possibly unknown, variable.
No. It may appear to cause the change because the changes are correlated. However, it is quite possible that changes in both variables are caused by some third, possibly unknown, variable.
No. It may appear to cause the change because the changes are correlated. However, it is quite possible that changes in both variables are caused by some third, possibly unknown, variable.
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoNo. It may appear to cause the change because the changes are correlated. However, it is quite possible that changes in both variables are caused by some third, possibly unknown, variable.
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Population Regression Function vs Sample Regression Function?
1. PRF is based on population data as a whole, SRF is based on Sample data 2. We can draw only one PRF line from a given population. But we can Draw one SRF for one sample from that population. 3. PRF may exist only in our conception and imagination. 4. PRF curve or line is the locus of the conditional mean/ expectation of the independent variable Y for the fixed variable X in a sample data. SRF shows the estimated relation between dependent variable Y and explanatory variable X in a sample.
Sample is to population as constant is to variable?
No.
How do you find the sample mean?
Add the values of the variable for all elements in the sample and divide by the number of elements on the sample.
What is determination of sample size?
It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.
What is a sample correlation?
If measurements are taken for two (or more) variable for a sample , then the correlation between the variables are the sample correlation. If the sample is representative then the sample correlation will be a good estimate of the true population correlation.
Population Regression Function vs Sample Regression Function?
1. PRF is based on population data as a whole, SRF is based on Sample data 2. We can draw only one PRF line from a given population. But we can Draw one SRF for one sample from that population. 3. PRF may exist only in our conception and imagination. 4. PRF curve or line is the locus of the conditional mean/ expectation of the independent variable Y for the fixed variable X in a sample data. SRF shows the estimated relation between dependent variable Y and explanatory variable X in a sample.
Sample is to population as constant is to variable?
No.
Are all voluntary response sample bad sample?
No they aren't.
How do you find the sample mean?
Add the values of the variable for all elements in the sample and divide by the number of elements on the sample.
How does sample size affect validity of results in a research?
A large sample reduces the variability of the estimate. The extent to which variability is reduced depends on the quality of the sample, what variable is being estimated and the underlying distribution for that variable.
Can a pointer be considered a variable?
You can declare pointer-variables, if that's what you mean. Example: char *sample = "Sample";
Sample treated like other experimental groups except variable is not applied?
Control Variable♪☆
What is determination of sample size?
It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.It is the process of deciding how large a sample is required so that the variable(s) of interest can be estimated to the desired degree of accuracy.
What is the definition of a sample space?
the range of values of a random variable.
What is a sample correlation?
If measurements are taken for two (or more) variable for a sample , then the correlation between the variables are the sample correlation. If the sample is representative then the sample correlation will be a good estimate of the true population correlation.
What variable are these samples if There are 8 participants in both samplesbut sample 1 are younger and sample 2 are older?
Variables are variable and samples are samples. Variables are not samples so the question has no meaning.
What conditions must be met if you want to have a scientifically valid sample for a study?
You must have a control group, an experimental group, an experimental variable (also called the independent variable), and a response to be measured (also called the dependent variable). The experimental variable is applied only to the experimental group, so that any difference between the control group and experimental group is due only to the experimental variable. Both the control group and experimental group must have the same conditions, except for the experimental variable.
