A chemical to extend the life of a car battery was invented by a researcher. If the average lifetime of the automobile battery is 28 months, then the null hypothesis will be H. : mean = 28 What is the...

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A chemical to extend the life of a car battery was invented by a researcher. If the average lifetime of the<br>automobile battery is 28 months, then the null hypothesis will be H. : mean = 28<br>What is the<br>alternative hypothesis?<br>O a. None of these<br>O b. Mean # 28<br>O c. Mean > 28<br>O d. Mean < 28<br>

Extracted text: A chemical to extend the life of a car battery was invented by a researcher. If the average lifetime of the automobile battery is 28 months, then the null hypothesis will be H. : mean = 28 What is the alternative hypothesis? O a. None of these O b. Mean # 28 O c. Mean > 28 O d. Mean <>

Jun 11, 2022
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