A Standard Aptitude Test Is Given to Several Randomly Selected

question 101

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

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Definitions:

Multiply

The arithmetic operation of scaling one number by another, equivalent to adding a number to itself multiple times.

Simplify

The process of reducing a mathematical expression or equation to its simplest form.

Compounded Annually

Refers to the process of calculating and adding interest to the principal sum of an investment or loan once every year.

Interest Rate

The proportion of a loan that is charged as interest to the borrower, typically expressed as an annual percentage of the loan outstanding.