how do you find test statistic using stat key

Test whether people with a specic genetic marker are more likely to have suffered from clinical depression than people without the genetic marker, using the information that 40% of the 40 people in a sample with the genetic marker have had clinical depression while 12% of the 775 people in the sample without the genetic marker have had clinical depression. Use subscripts l for yes these people have the genetic marker and 2 for no these people do not have the genetic marker. it) Give the test statistic and the p-value. Round your answer for the test statistic to two decimal places and your answer for the p-value to three decimal places