The results described below were observed in a hypothetical case-control study and reflect the "unbiased" results. You can assume that they reflect valid selection criteria for the study subjects, 100% participation by study subjects, no exposure misclassification, no biases, no confounding.

	Cases	Controls
Exposed	600	300
Unexposed	400	700

(a) Now suppose that 15% of exposed cases and 15% of exposed controls had been misclassified as unexposed; none of the unexposed cases and controls had been misclassified as exposed. Fill in the observed 2x2 table below (8 points):

	Cases	Controls
Exposed
Unexposed

(b) What is the observed odds ratio? (report with 2 decimals,

(c) Was the misclassification differential or non-differential?