A Standard Aptitude Test Is Given to Several Randomly Selected

question 54

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

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Definitions:

Parent Cell

The cell that divides to give rise to daughter cells during cell division.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA.

Meiosis

A type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, essential for sexual reproduction.

Alleles

Variants of a gene that arise by mutation and are found at the same place on a chromosome.