A city planner conducted a survey of 100 randomly selected households to estimate the average daily water usage. The survey reported a mean usage of 280 gallons, with a margin of error of 15 gallons. Which of the following statements is a reasonable conclusion about the mean daily water usage for all households in the city?
It is exactly 280 gallons.
It is less than 265 gallons or greater than 295 gallons.
It is between 265 gallons and 295 gallons.
It is greater than 295 gallons.
