Question: Power Supply Data Set 18 in Appendix: Data Sets lists measured voltage amounts supplied directly to the authors home. The Central Hudson power supply company

Power Supply Data Set 18 in Appendix: Data Sets lists measured voltage amounts supplied directly to the author’s home. The Central Hudson power supply company states that it has a target power supply of 120 volts. Using those home voltage amounts, test the claim that the mean is 120 volts. Use a 0.01 significance level.

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