Applied Statistics in Business and Economics
5th Edition
ISBN: 9780077837303
Author: David Doane, Lori Seward Senior Instructor of Operations Management
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8.5, Problem 20SE
For each value of d.f. (degrees of freedom), look up the value of Student's t in Appendix D for the stated level of confidence. How close is the t-value to the corresponding z-value (at the bottom of the column for d.f. = ∞)?
- a. d.f. = 40, 95 percent confidence
- b. d.f. = 80, 95 percent confidence
- c. d.f. = 100, 95 percent confidence
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Chapter 8 Solutions
Applied Statistics in Business and Economics
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