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A tire manufacturing company is reviewing its warranty for their rainmaker tire. The warranty is for 40,000 miles. The distribution of tire wear is normally distributed with a population standard deviation of 15,000 miles. The tire company believes that the tire actually lasts more than 40,000 miles. A sample of 49 tires revealed that the mean number of miles is 45,000 miles. To test the hypothesis at a 0.05 significance level, what is the computed test statistic?
Technological Knowledge
Society’s understanding of the best ways to produce goods and services.
Human Capital
The collective skills, knowledge, or other intangible assets of individuals that can be used to create economic value.
Diminishing Returns
An economic principle stating that as investment in a particular area increases, the rate of profit from that investment, after a certain point, cannot continue to increase if other variables remain constant.
Catch-Up Effect
The theory that poorer economies will tend to grow at faster rates than wealthier ones, allowing them to catch up in terms of income and other economic measures.
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