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- 1. For a randomly chosen 50 students from first year students have a mean grade of 75 and standard deviation 10. For an
- 1. For a randomly chosen 50 students from first year students have a mean grade of 75 and standard deviation 10. For an independent sample of 50 students from the second year students have a mean grade of 68 and standard deviation 8. Find a 95.44% confidence interval for the difference between the two populations mean. Assume that first and second year student's grade has a normal distribution.
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Data Analysis And Decision Making
Authors: Christian Albright, Wayne Winston, Christopher Zappe
4th Edition
538476125, 978-0538476126
