A Standard Aptitude Test Is Given to Several Randomly Selected

question 90

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. $$\begin{array} { | l l l l l l l l l l | } \hline \text { Mathematics } & 347 & 440 & 327 & 456 & 427 & 349 & 377 & 398 & 425 \\\hline \text { Verbal } & 285 & 378 & 243 & 371 & 340 & 271 & 294 & 322 & 385 \\\hline\end{array}$$