EEEE V VV Normal No Spacing Heading 1 Heading 2 Title Paragraph Styles 1. In a survey of 957 U. S. adults, 668 said that they approve of labor unions. Does this survey indicate that more than two-thirds of U. S. adults approve of labor unions? 2. A volunteer group of 20 elderly residents of a care facility were given a memory test. 17 residents scored above 80%, but 3 residents scored below 60%. Should the manager of the care facility conclude that less than 20% of the residents have memory problems? 3. In a study of 500 hard drives, it is found that 125 of the hard drives needed repairs within five years of purchase. Does this study indicate that more than 20% of hard drives need repairs within five years of purchase? 4. A research company was trying to determine how the public perceives the role of unions. In a survey of 1001 U.S. adults, the company found that 501 believed an important role of unions was to protect workers' rights. Does this indicate that the majority of U. S. adults believe that an important role of unions is to protect workers' rights? 5. In a survey of 50 vacationers conducted before 2020, 18%% of these vacationers plan to travel outside the United States. Does this indicate that less than 20% of vacationers plan to travel outside the United States? 6. A medical researcher estimates that less than 40% of U. S. adults eat breakfast every day. In a random sample of 300 U.S. adults, 1 14 said that they eat breakfast every day. Is there enough evidence to support the researcher's estimate