The Manager of a Consulting Firm in Lansing, Michigan, Is

question 69

Essay

The manager of a consulting firm in Lansing, Michigan, is trying to assess the effectiveness of computer skills training given to all new entry-level professionals. In an effort to make such an assessment, he administers a computer skills test immediately before and after the training program to each of 20 randomly chosen employees. The pre-training and post-training scores of these 20 individuals are shown in the table below.
-(A) Is this two-sample data or paired data. Explain your answer.
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(B) Specify an appropriate hypothesis test.
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(C) Using a 10% level of significance, do the given sample data support that the firm's training programs is effective in increasing the new employee's computer skills?
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(D) Using a 1% level of significance, do the given sample data support that the firm's training programs is effective in increasing the new employee's working knowledge of computing?

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Definitions:

Bone Cells

Specialized cells that form, maintain, and remodel bone tissue within the skeletal system.

Pseudostratified Columnar Epithelium

A type of tissue with cells of varying height that appears stratified but is actually a single layer.

Ciliated Columnar Epithelium

A type of epithelial tissue featuring tall, narrow cells equipped with cilia on their surface, involved in the movement of substances across the tissue surface.

Upper Respiratory Tract

The section of the respiratory system comprising the nose, nasal passages, pharynx, and larynx that filters, warms, and moistens air during breathing.