A study was conducted to find out if the average fasting blood sugar levels and patient suffering from disease was different from the average fasting blood sugar level, and patient suffering from disease why the investigators chose to do the study on a sample of randomly selected 200 patients with disease and 200 patients with disease based on their findings the investigators concluded that there was no difference between the two groups of patients when actually such a difference as exist in real life the investigators committed a type one error or type two error