Jake Is Working on His Thesis and Has Two Groups

Multiple Choice

Jake is working on his thesis and has two groups of subjects.A total of 10 subjects listened to music at 80 decibels which is considered loud.While the other 10 subjects listed to the same music at only 30 decibels which is soft.After 1 hour each groups was given a hearing test.However,he matched subjects before they were put into groups on hearing abilities.What statistical test should be used to analyze the data?

A) correlated-groups t test
B) independent-groups t test
C) two-sample independent z test
D) Pearson correlation