what is the test used to test to see if the mean is different from the mean of the group? what does mean mean std mean how to tell if the mean of a group is different how to measure differences in standard deviations of sample how to test the difference between a subsample and a means what makes a subsample different from the average how to determine whether a subsample is independent of the mean in a study what would the mean and std of the sample of a large sample be based on? what is mean vs standard deviation how is the mean of subsample different from mean of a whole test is mean based on sample what is the difference between std and mean when the normal range is 0 and the mean is 1%, how are the means determined? how can you find out how a subsample is different from the mean is a subset of a sample a mean or standard deviation can a subsample be tested for differences in mean which means are independent what is the difference between a subsample and a sample of a larger sample? is the mean independent? how to test whether the mean of a subsample is independent of the mean of the sample