A Standard Aptitude Test Is Given to Several Randomly Selected

question 24

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:

PGAL

PGAL, or Phosphoglyceraldehyde, is a three-carbon molecule that plays a crucial role in both photosynthesis and glycolysis, acting as an intermediate in the conversion of glucose and other sugars.

ATP

A molecule involved in energy transfer within cells, crucial for muscle contraction, nerve impulse propagation, and chemical synthesis.

Calvin-Benson Cycle

A series of biochemical reactions taking place in the chloroplasts of photosynthetic organisms during the light-independent reactions of photosynthesis.

NADPH

Nicotinamide adenine dinucleotide phosphate, a coenzyme involved in cellular metabolism, particularly in the synthesis of fatty acids and the antioxidant system.