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In: Statistics and Probability

A SRS of 10 teachers has a mean weekly salary of 820 and standard deviation 25,...

A SRS of 10 teachers has a mean weekly salary of 820 and standard deviation 25, and a SRS of 9 nurses has a mean weekly salary of 840 and standard deviation 35. Assuming weekly salaries for both teachers and nurses are normally distributed. Is there evidence that the mean salaries for the two professions different? Use a = .05.

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