# Data Set 13 in Appendix B lists voltage amounts measured from electricity supplied directly to the author?s home, an independent Generac generator (model PP 5000), and an uninterruptible power supply (APC model CS 350) connected to the author?s home power

Data Set 13 in Appendix B lists voltage amounts measured from electricity supplied directly to the author?s home, an independent Generac generator (model PP 5000), and an uninterruptible power supply (APC model CS 350) connected to the author?s home power supply. The results are shown below for analysis of variance obtained using JMP software. Use a 0.05 significance level to test the claim that the three power supplies have he same mean voltage. Can electrical appliances be expected to behave the same way when run from the three different power sources?

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## JMP Source Column 2 Error C. Total DF Sum of Squares 28.816667 2 117 9.211250 38.027917 119 Mean Square 14.4083 0.0787 F Ratio 183.0126 Prob > F

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