Description
Kenny can row 4 mph in still water. He rows 12 miles downstream on the Yellow River and returns upstream in a total of 8 hours. Find the speed of the current.
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Explanation & Answer
You need to have the speed that the river flows.
If he's rowing 12 miles downstream it will take him 12/(4mph + river speed) [hours]
If he's rowing 12 miles back up stream it will take him 12/(4mph - river speed) [hours]
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Chapter 11, pages 149–158, describes how to run a t test in SPSS. Field, A. (2018). Discovering statistics using IBM SPSS: North American edition (5th ed.). Thousand Oaks, CA: Sage.
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14 pages
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