Your lab partner is trying to figure out a way to decrease the standard error of the mean when planning a t-test for his/her experiment. One way that will most likely accomplish this is: a) decrease...

Your lab partner is trying to figure out a way to decrease the standard error of the mean when planning a t-test for his/her experiment. One way that will most likely accomplish this is:

1. a) decrease sample size


2. b) increase sample size


3. c) increase variability in the sample