What is the probability that confounding factor fall to the right of 95%-
Ref:Parks 23rd edition pg 849. 1SD : confidence limit = 68% 2SD : confidence limit = 95% 3SD : confidence limit = 99.7% Here 5% values remains and falls to the right and left altogether . So, 2.5% lies to the right and 2.5 to the left . 2.5/100= 1/40
1 in 5
1 in 10
1 in 20
1 in 40
Biostatistics