Question
which of the following options provides the best definition of what is meant when referring to the sampling distribution of the difference in sample means,
which of the following options provides the best definition of what is meant when referring to the sampling distribution of the difference in sample means, xa - xb ?
a. it is the distribution of all possible values of xa - xb calculated from the same samples, taken from populations of the same size
b. it is the distribution of the sample data used to calculate xa - xb
c. it is the value of xa - xb calculated from the sample data
d. it is the distribution of all possible values of xa - xb if repeated samples of the same size were taken from their respective populations.
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