Math, asked by saadnalgire07, 7 hours ago

Life tests performed on a sample of 14 batteries of a new model indicated: (1) an average life of 75 months, and (2) a standard deviation of 5 months. Other battery models, produced by similar processes, have normally distributed life spans. The 95% confidence interval for the population mean life of the new model is _________.

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Answered by gulabsharmabwd

0

98%

Step-by-step explanation:

98 %

mark me as brainiest

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