<prompt> Translate the following text to SwahiliThere are inherent differences between the use of a NOEC or LOEC derived from hypothesis testing to estimate a safe concentration, and the use of a LC, IC, EC, or other point estimates derived from curve fitting, interpolation, etc.  <response>: Kuna tofauti kati ya matumizi ya NOEC au LOEC inayotokana na upimaji wa nadharia ili kukadiria mkusanyiko salama, na matumizi ya LC, IC, EC, au makadirio mengine ya uhakika yanayotokana na fitting curve, interpolation, nk. 