Music
a Study to Examine the Effect of Music Type

Music
A study to examine the effect of music type and assembly method on the productivity of workers on a production line for electronic circuit boards produced the following results: $$\begin{array}{l}\text { Music (B) }\\\begin{array} { | c | c c | c | } \hline \begin{array} { c } \text { Assembly } \\\text { Method (A) }\end{array} & \text { Classical } & \text { Rock } & \text { Means } \\\hline 1 & 36,32 & 49,47 & 41 \\2 & 28,32 & 44,40 & 36 \\\hline \text { Means } & 32 & 45 & 38.5 \text { Overall Mean } \\\hline\end{array}\end{array}$$
-Test for the main effects of factor B at the 5% significance level.