A Researcher Wishes to Determine Whether Listening to Music Affects

question 52

Essay

A researcher wishes to determine whether listening to music affects students' performance on memory test. He randomly selects 50 students and has each student perform a memory test once while listening to music and once without listening to music. He obtains the mean and standard deviation of the 50 "with music" scores and obtains the mean and standard deviation of the 50 "without music scores". He then performs a hypothesis test for two means assuming large and independent samples. Is this approach appropriate? If not, how would you proceed.

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Definitions:

Pyothorax

Accumulation of pus in the pleural cavity caused by infection, which can lead to compromised lung function and requires medical intervention.

Metathorax

The third and last of the three segments in the thorax of an insect, carrying the second pair of wings and the second pair of legs.

Water Vascular System

A hydraulic system used by echinoderms, like starfish, for locomotion, food and water transportation, and waste removal.

Asexual Fragmentation

A method of asexual reproduction where an organism breaks into fragments, each of which develops into a new organism.