Cecelia is conducting a study on income inequality in Memphis. Before she begins her main analyses, she wants to report her sample's descriptive statistics and make sure that it provides an accurate reflection of the population. Her sample consists of 1,000 Memphis residents. She knows from census data that the mean household income in Memphis is $32,285 with a standard deviation of $5,645. However, her sample mean is only $31,997 with a standard deviation of $6,005