For computational statistics

Current Attempt in Progress A city planner wants to estimate the average monthly residential water usage in the city. He selected a random sample of 39 households from the city, which gave the mean water usage to be 3411.30 gallons over a onemonth period. Based on earlier data, the population standard deviation of the monthly residential water usage in this cityis 387.60 gallons. Make a 97% condence interval for the average monthly residential water usage for all households in this city. Round your answers to two decimal places. a to n gallons eTextbook and Media Save for Later Attempts: (Inf 5 used