A university believes that the average retirement age among the faculty is now 70 instead of the
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A university believes that the average retirement age among the faculty is now 70 instead of the historical value of 65. A sample of 85 faculty found that the average of their expected retirement age is 68.4 with a standard deviation of 3.6. Can the university conclude statistically that the mean retirement age now equals 70?
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Related Book For 
Business Analytics Methods Models and Decisions
ISBN: 978-0321997821
2nd edition
Authors: James R. Evans
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