Q1: What is the household's median hourly usage in kW?
Q2: What is the interquartile range in kW?
Q3: What is the interquartile range relative to the median usage? That is, what are the ratios of the ends of the interquartile range to the median?
Q4: What is the 90% confidence interval for the household's usage in kW?
Q5: How high is the household's usage at the 99th percentile relative to its median usage?