In an experiment to determine the effect of catalyst on the yield of a certain reaction, the mean yields for reactions run with each of four catalysts were , and . Assume that five runs were made with each catalyst.
a. If , compute the value of the statistic for testing the null hypothesis that all four catalysts have the same mean yield. Can this null hypothesis be rejected at the level?
b. Use the Tukey-Kramer method to determine which pairs of catalysts, if any, may be concluded to differ at the level.
Week 3 Notes Tuesday, September 6, 201611:06 AM Important Points ○ LimitingReagent:Reactant used up first in the reaction ○ Theoretical Yield: Is the amount of productthat would result if all the limiting reagent reacted MAXIMUMobtainable result ○ Actual Yield is the amount of product actually obtained out of a reaction. • More on Titrations ○ Titrationcan be usedin the analysis of acid-baseand redox reactions • Physical Characteristicsof Gases ○ Gases assumethe volume and shapeof their containers ○ Most compressiblestate of matter ○ Gases will mix evenly and completelywhen confinedto the same container ○ Much lower densitiesthan liquidsand solids • Pressure ○ 1 pascal(Pa) = 1 N/m^2