In a Completely Randomized Design Involving Four Treatments, the Following

Multiple Choice

In a completely randomized design involving four treatments, the following information is provided. $\begin{array}{llcc}&\text { Treatment } 1&\text { Treatment } 2&\text { Treatment } 3&\text { Treatment } 4\\\text { Sample Size } &50&18&15&17 \\\text { Sample Mean } &32&38&42&48\end{array}$ The overall mean the grand mean) for all treatments is

A) 40.0
B) 37.3
C) 48.0
D) 37.0