The income of males in each state of the United States, including the District of Columbia and Puerto Rico, are given in table #9.3.3, and the income of females is given in table #9.3.4 ("Median income of," 2013). Is there enough evidence to show that the mean income of males is more than of females? Test at the 1% level. $42,951 $52,379 $42,544 $37,488 $49,281 $50,987 $60,705
$50,411 $66,760 $40,951 $43,902 $45,494 $41,528 $50,746
$45,183 $43,624 $43,993 $41,612 $46,313 $43,944 $56,708
$60,264 $50,053 $50,580 $40,202 $43,146 $41,635 $42,182
$41,803 $53,033 $60,568 $41,037 $50,388 $41,950 $44,660
$46,176 $41,420 $45,976 $47,956 $22,529 $48,842 $41,464
$40,285 $41,309 $43,160 $47,573 $44,057 $52,805 $53,046
$42,125 $46,214 $51,630