or is it like this
t=(3.2ppm-3ppm)/0.48ppm * √n =2.97
H(S=95%,n-1) x=μ--> t=2.0092
2.97<2.0092 (not true)
H(S=99%, n-1) x≠μ t=2.6802
2.97>2.6802 (true)
Hello
i have a problem with my homework and i hope someone can help me? because i really don't know how to calculate this
so its translated with google translate :blushing:
Major customer PCB (polychlorinated biphenyls, a hazardous substance used in
manufacture of transformers and...