A local environmental group was interested in estimating the total amount (in pounds) of recycled material that is collected weekly from the curbside of households within the Clemson city limits. There are 3500 households in the Clemson city limits. Sixty-four Clemson households were randomly selected and the average weekly amount of curbside recycled material collected from these households was 4 pounds with a standard deviation of 0.5 pound. Determine the standard error of the total amount of recycled material from all Clemson households.