According the the U.S. Department of Education, full-time graduate students receive an average salary of $15,000 with a standard deviation of $1,200. The dean of graduate studies at a large state university in PA claims that his graduate students earn more than this. He surveys 100 randomly selected students and finds their average salary is $16,000. Use a significance level of 0.05 to test if there is evidence that the dean's claim is correct. What is the Z obt? (round to the nearest tenth)
QUESTION 5
For this problem you will need: pencil, paper, calculator, z-crit significance levels. and a NC probability calculator,
Z-Crits for Common Significance Levels
https://docs.google.com/document/d/1bkcDAOsof2cceLd0qhIhiyJ4C09VkQwSuGUcOTQLLpI/edit?usp=sharing
Normal Curve Probability Calculator
https://www.mathportal.org/calculators/statistics-calculator/
According the the U.S. Department of Education, full-time graduate students receive an average salary of $15,000 with a standard deviation of $1,200. The dean of graduate studies at a large state university in PA claims that his graduate students earn more than this. He surveys 100 randomly selected students and finds their average salary is $16,000. Use a significance level of 0.05 to test if there is evidence that the dean's claim is correct.
What is the Z obt? (round to the nearest tenth)
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