Jake Is Working on His Thesis and Has Two Groups

question 32

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

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Definitions:

Type I Error

The incorrect rejection of a true null hypothesis, also known as a "false positive."

P-value

A measure in statistical hypothesis testing representing the probability of observing a statistic at least as extreme as the one observed, under the assumption that the null hypothesis is true.

Null Hypothesis

A hypothesis that suggests there is no statistical significance between the specified sets of observations.

Support

In data mining and machine learning, it often refers to the frequency or occurrence of certain patterns or relationships within a dataset.