Question: batteries. The average lifetime was 620 hours with standard deviation s = 120 h. A) Find the 95% confidence interval (583.7; 656.3) B) Whether there

batteries. The average lifetime was 620 hours with standard deviation s = 120 h. A) Find the 95% confidence interval (583.7; 656.3) B) Whether there is reason to believe that the term is overvalued at a =0.01, 0.02, ..., 0.10? FTR HO if @

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