The T-Score Formula. The t-score is a fraction. The numerator is the sample's mean minus mean of the group you are comparing the sample to, and the denominator is the sample's standard deviation divided by the square root of the sample size.
If you have smoked marijuana then the drug will stay for 3 to 30 days. This is normal for the common drugs. But in the case of marijuana, this can be detected even after a month in Urine drug test marijuana. Marijuana will stay in your system for 10 days if you have been smoking occasionally.
Adipex can be detected in urine, saliva, or hair. If the drug test  is a urine test or saliva test, the drug will stay in the system  for only about 2 days. However, like mo â¦ st drugs, the hair test will  detect it after as long as 90 days. On average, amphetamines will stay in your system from 1-4 days, depending on many factors including amount used, frequency of use, bodyweight, metabolism, etc. 2  New entry: Everyone should be aware that some drugs, both prescription and elicit, are stored in fat cells.