Hypothesis testing on two means from dependent samples cannot be conducted using the same methods appropriate for independent sample analysis.The main reason for this is because:
A) there is no unbiased estimator that can be calculated from dependent samples.
B) the variance of must account for the dependence.
C) the power of the estimation equation is no longer defined.
D) sample averages can be calculated only from independent samples.

Question

Hypothesis testing on two means from dependent samples cannot be conducted using the same methods appropriate for independent sample analysis.The main reason for this is because:
A) there is no unbiased estimator that can be calculated from dependent samples. 
B) the variance of must account for the dependence. 
C) the power of the estimation equation is no longer defined. 
D) sample averages can be calculated only from independent samples.

Quizplus · Accepted Answer

The variance of the difference between the two means in dependent sample analysis is influenced by the dependence between the samples. Therefore, different methods and formulas need to be used to calculate the test statistic and p-value.

Hypothesis Testing on Two Means from Dependent Samples Cannot Be