Here Is the Kind of Problem Gosset Was Confronted with at the Guinness

Essay

Here is the kind of problem Gosset was confronted with at the Guinness Company in Dublin. In the brewing process the yeast converts sugar into alcohol until the alcohol builds up to a level that kills the yeast. This typically happens at about 10-13% alcohol. The data below are for two strains of yeast. The numbers represent how resistant the yeast is to alcohol. Perform a t test at the .05 level, find d, and write a sentence summary of your conclusion. In addition, justify the statistical design you need to analyze these data. $$\begin{array} { c c } \text { Strain A } & \text { Strain B } \\\hline 10 & 14 \\11 & 13 \\12 & 9 \\9 & 13 \\9 & 13 \\11 & 14\end{array}$$