Read this passage, and then answer the question. Seals played a very important role in the Harappan civilization. Seals often had holes so that the user could pass a thread through it and wear the seal. The seals probably carried information about the owner’s position, clan, and status. Seals were used to stamp important items for trade, such as packages or goods. They may also have been used to seal contracts. Most seals were found in large numbers near the city gates.

What two inferences can be made based on the information in this passage?

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: