Keyboard Configuration and Size

question 138

Essay

Keyboard Configuration and Size
The data shown below were taken from a 2 × 3 factorial experiment to examine the effects of factor A (keyboard configuration,3 levels)and factor B (keyboard size,2 levels)on typing speed.Each cell consists of the times needed for each of 4 randomly assigned keyboardists to type a standard document under each set of conditions (in minutes). ​ ​
-{Keyboard Configuration and Size Narrative} Test at the 5% significance level to determine if time differences exist among the keyboard sizes.

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Definitions:

Expiratory Reserve Volume

The extra quantity of air that one can expel with force after completing a standard breath out.

Pneumothorax

The medical condition where air leaks into the space between the lung and chest wall, causing the lung to collapse.

Atelectasis

A condition characterized by the partial or complete collapse of a lung or a section (lobe) of a lung.

Pulmonary Edema

A condition characterized by an accumulation of fluid in the lungs' air sacs, leading to difficulty breathing.