A computer laboratory manager must choose between three brands of battery packs for use in a laboratory of laptop computers. A major concern is the time, in hours, the battery packs will function before needing to be recharged. The manager obtains a random sample of eight observations for each of the three brands and records the following information: 
= 1150.72, and 
= 165.6
Use Tukey's method of comparison to determine which of the three battery pack means differ from the others. Let 
= 0.05.
Definitions:
Whole Form
Another term for the Gestalt perspective which focuses on patterns and configurations in human perception rather than individual components.
Component Parts
The individual pieces or elements that collectively create a complete system or product.
Gestalt Grouping
Refers to the psychological principles that allow humans to perceive objects as organized patterns and wholes, rather than mere collections of individual components.
Similarity
The state of being alike or having common features.
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