Keyboard Speed Ten Administration Assistants Were Selected at Random from a Large

question 42

Essay

Keyboard Speed
Ten administration assistants were selected at random from a large university.The keyboard speed (number of words per minute)was recorded for each secretary on two different brands of computer keyboards.Assume that the typing speeds are not normally distributed.The following results were obtained. ​ ​
-{Keyboard Speed Narrative} Perform the sign test to determine if these data provide enough evidence at the 5% significance level to infer that the brands differ with respect to keyboard speed.

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Definitions:

Artificial Selection

The process by which humans breed plants and animals for particular genetic traits, often leading to dramatic changes in morphology, physiology, and behavior over relatively short time periods.

Brassica Oleracea

A species of plant that includes a variety of vegetables, such as cabbage, broccoli, cauliflower, kale, and Brussels sprouts, due to selective breeding.

Plant Organ

A specialized part of a plant, such as roots, stems, leaves, or flowers, that performs a particular function necessary for the plant's life.

Gall Sizes

Variations in the size of plant galls, which are growths induced by organisms like insects as a habitat and food source.