ST 512 Quiz: ST 512 NCSU Quiz2 sp10 key
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Use tukey"s procedure to conduct all pairwise comparisons among sample treatment means at experimentwise error rate = . 05. Report the honestly signi cant di erence and indicate which di erences in the table above may declared signi cant. Hsd = q(. 05, 4, 12)s m s(e) n. = 4. 2 3 = 12. 6: a student in the bae dept. runs a completely randomized experiment . 52. 0000000 (a) consider the e ect of adding uv in the absence of ozone: estimate this e ect. [oau ] = y2+ y1+ = 39. 75 34. 75 = 5: report a 95% con dence interval for the e ect. T(. 025, 12)rm s(e)x c2 i /n or 5 2. 18s23. 375. 4 or or 5 2. 18(3. 42) or 5 7. 45: this e ect is a ( simple /main/interaction) e ect. (circle one. ) (b) estimate the e ect of adding uv in the presence of ozone.
