The Gallup Organization contacts 1500 men over 50 years of age and live in the United States and asks them whether or not they smoke. What is the population in this study? the 1500 men in the survey all U.S. men over the age of 50 who smoke all U.S. men over the age of 50 those men in the sample who smoke What is the sample in this study? those men in the sample who smoke all U.S.men over the age of 50 who smoke all U.S. men over the age of 50 the 1500 men in the survey
