Two voting districts, c and m, were sampled to investigate voter opinion about tax spending. From a random sample of 100 voters in district c, 22 percent responded yes to the question "are you in favor of an increase in state spending on the arts?" an independent random sample of 100 voters in district m resulted in 26 percent responding yes to the question. A 95 percent confidence interval for the difference (pc−pm) was calculated as −0. 04±0. 12. Which of the following is the best interpretation of the interval?.