Confidence Interval for Home Voltage The proper operation of typical home appliances requires…

Confidence Interval for Home Voltage The proper operation of typical home appliances requires voltage levels that do not vary much. Listed below are ten voltage levels (in volts) recorded in the author’s home on ten different days. (The voltages are from Data Set 13 in Appendix B.) These ten values have a standard deviation of s = 0.15 volt. Use the sample data to construct a 95% confidence interval estimate of the standard deviation of all voltage levels.2123.3 123.5 123.7 123.4 123.6 123.5 123.5 123.4 123.6 123.8

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