<prompt> Translate the following text to EnglishTABLE 6 MAGUNDI YA NATIONAL INTERLABORATORY YA MAGUNDI YA TAXIKA YA KWA KWA KWA  <response>: TABLE 6. NATIONAL INTERLABORATORY STUDY OF ACUTE TOXICITY TEST PRECISION, 2000: PRECISION OF LC50 POINT ESTIMATES FOR REFERENCE TOXICANT, EFFLUENT, AND RECEIVING WATER SAMPLE TYPES1. 