QUESTION 9 Manufacturer claims that the average length of time the new smartphone battery holds until the empty battery is 9 hours. You believe that actually the battery holds less time. What is the correct hypothesis statement? Ho:μ = 9 Ha:μ#9 °Ho: μ> 9 Ha:μµ<9 Ho:μ ≥9 Ha:μ<9 Ho:μ ≤9 Ha:μ>9

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