The Table Below Shows the Mean Number of Daily Errors $\quad$

question 32

Multiple Choice

The table below shows the mean number of daily errors by air traffic controller trainees during the first two weeks on the job. We want to perform a paired t-test at ? = .05 to see if the mean daily errors decreased significantly. $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Trainee }$
$\begin{array}{|c|c|c|c|c|c|c|c|}\hline&\text { T1 } & \text { T2 } & \text { T3 } & \text { T4 } & \text { T5 } & \text { T6 } & T 7 \\\hline \text { Week 1 }&5.1 & 3 & 12.1 & 6.2 & 11.5 & 7.8 & 2.2 \\\hline \text { Week 2}&3.2 & 2.2 & 8.7 & 7.7 & 9.4 & 7.8 & 3.1 \\\hline\end{array}$ What would be the degrees of freedom for the appropriate test?

• A)14
• B)12
• C)7
• D)6

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Definitions:

Verbal Processing

The cognitive function involved in the understanding and production of spoken and written language.

Split-brain

A condition resulting from the severance of the corpus callosum, leading to disconnection between the brain's two hemispheres.

Left Hemisphere

The left side of the brain, responsible for controlling the right side of the body and often associated with analytical and verbal tasks.

Thalamus

A structure in the brain that acts as a relay station for transmitting information between different areas of the brain.