A Standard Aptitude Test Is Given to Several Randomly Selected

Essay

A standard aptitude test is given to several randomly selected programmers, and the scores are given below for
the mathematics and verbal portions of the test. Use the sign test to test the claim that programmers do better on
the mathematics portion of the test. Use a 0.05 level of significance. $$\begin{array} { l l l l l l l l l l } \text { Mathematics } & 347 & 440 & 327 & 456 & 427 & 349 & 377 & 398 & 425 \\\hline \text { Verbal } & 285 & 378 & 243 & 371 & 340 & 271 & 294 & 322 & 385\end{array}$$