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The dean of a business school claims that the average starting salary of its graduates is more than $50,000. It is known that the population standard deviation is $10,000. Sample data on the starting salaries of 25 randomly selected recent graduates yielded a mean of $52,000. What is the value of the sample test statistic?
Irrigation
The artificial application of water to land or soil, used to assist in the growing of agricultural crops and the maintenance of landscapes.
Plow
A farming tool used for cutting, lifting, and turning over soil, mainly in preparation for planting.
Microlith
Small, finely crafted stone tools, typically part of composite tools, used by prehistoric peoples.
Secondary Innovation
New improvements or adaptations made to existing technologies or ideas, enhancing their functionality or applying them in new contexts.
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