data points

  1. W

    Minitab/Excel to Analyze Data - What do I use?

    Hi, I've been collecting data from a couple different experiments I've been running the lab. I run a mixing system through runs with solid material. The material is the same but some of the properties keep changing when I put it in (pH, %-solids) and are recorded through tests. I take T=0...
  2. B

    Independent t test - small sample size - use all data points?

    Hi there, I am running a small study in which both treatment (n = 7) and control groups (n= 6) have undertaken the same 48 item rating scale task (scale = 1 - 10) pre- and post-treatment period. We are running an independent t test to see whether the mean difference score (post test score -...