A random sample of 16 lightbulbs of one brand was selected to estimate the mean lifetime of that brand of bulbs. The sample mean was 1025 hour, with a standard deviation of 130 hours. Assuming that the lifetimes are approximately normally distributed, which of the following will give a 95% confidence interval to estimate the mean lifetime? 1025 + 2.13 (13D.) V16 O 1025 + 1.96/130 130 1025 土1.96 V16 1025 上2.13 ( 130 16 O 1025 + 2.13/130 1025 E 1.96 (V5) 130

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