Question: Answer and explanations would be very helpful! 15. (10 points) A battery manufacturer advertises that their batteries last 20% longer than their competitor's battery. :1.

Answer and explanations would be very helpful!

15. (10 points) A battery manufacturer advertises that their batteries last 20% longer than their competitor's battery. :1. Briey describe a way to collect data that could be used to test this hypothesis. b. Explain how your experimental design might help minimize the chance for bias in the data collection. c. What are the null and alternative hypotheses for your test? (1. Should this study get IRB approval? Explain

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