The formula for calculating wage is \dfrac pt t p ​ start fraction, p, divided by, t, end fraction where ttt is the time duration for which an amount ppp of money is paid. Astrid is looking for a job at a call center. Call center A offers her 151515 dollars per hour and call center B offers her 252525 cents per minute. Which place offers a higher wage?

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias