Suppose You Have Used a Randomized Block Design to Compare $\alpha = .10$

Essay

Suppose you have used a randomized block design to compare the efficacy of three different doses of an experimental drug. You used seven patients in your study. The data is listed below. Do the data indicate that a particular dosage is more effective than any other dosage? Use $\alpha = .10$ .
$\begin{array}{cccc}{\text { Dosage }} \\\hline \text { Patient } & \mathrm{A} & \mathrm{B} & \mathrm{C} \\\hline 1 & 44 & 46 & 53 \\2 & 48 & 48 & 48 \\3 & 46 & 47 & 47 \\4 & 45 & 50 & 51 \\5 & 44 & 43 & 45 \\6 & 49 & 47 & 51 \\7 & 45 & 47 & 50 \\\hline\end{array}$