Question: An experimenter would like to construct a 99% two side0d t-interval, with a length at most 0.2 ohms, for the average resistance of a segment

An experimenter would like to construct a 99% two side0d t-interval, with a length at most 0.2 ohms, for the average resistance of a segment of copper cable of a certain length. If the experimenter feels that the standard deviation of such resistances is no larger than 0.15 ohms, what sample size would you recommend?

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