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Carver Memorial Hospital's Surgeons Have a New Procedure That They

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Carver Memorial Hospital's surgeons have a new procedure that they think will decrease the time to perform an appendectomy. A sample of 8 appendectomies using the old method had a mean of 38 minutes with a variance of 36 minutes, while a sample of 10 appendectomies using the experimental method had a mean of 29 minutes with a variance of 16 minutes. For a right-tailed test of equal means (assume equal variances) , the pooled variance is:


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Team-Based Organizations

Team-based organizations structure their operations around groups of employees, leveraging teamwork for increased efficiency and innovation.

Communities of Practice

Groups of people who share a concern or passion for something they do and learn how to do it better as they interact regularly.

Self-Directed Teams

Groups of employees who are given autonomy to manage their work and make decisions without direct supervision.

Tall Hierarchy

An organizational structure characterized by many levels of management and supervision, resulting in a long chain of command.

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