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At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21. The average age of the students in the sample was 23 with a standard deviation of 3.5.
a.Formulate the hypotheses for this problem.
b.Compute the test statistic.
c.Determine the p-value and test these hypotheses. Let = .05.
Respiratory System
The body system that carries on gas exchange; in vertebrates, consists of the lungs and airways.
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An odorless and colorless gas, the result of organic compounds and carbon being burnt and the process of respiration. Found naturally in the atmosphere, it is essential for the photosynthesis conducted by plants.
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Blood is a vital fluid in humans and other animals that transports necessary substances such as nutrients and oxygen to the cells and carries away waste products.
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