A researcher is interested in race differences in the amount of bail set for whites and nonwhites. They recorded the dollar amounts of bail for a random sample of 8 white and 8 nonwhite defendants. The data are shown below:

Whites Nonwhites

$600 $800

$200 $550

$150 $1,000

$250 $1,100

$250 $400

$200 $100

$300 $750

$650 $1,300

a) Test the null hypothesis of no race difference in the amount of bail ( = .05).

*Hint, this is a t ratio calculation.

b) Based on the result, should there be concern about the presence of racial disparity in bail setting?