A township supervisor hopes to improve the current recycling program by having residents separate their recycled materials by type. For example, glass and plastic materials would be placed into separate recycling containers. To measure community support for a change to the recycling program, the supervisor visits a busy shopping area and asks randomly selected residents to respond to the following question: "Do you agree that responsible citizens would separate their recycled items by type of material?” What type of bias could be present in the survey results and what is a likely direction of the bias in estimating community support for the change to the recycling program?
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A township supervisor hopes to improve the current recycling program by having residents separate their recycled materials by type. For example, glass and plastic materials would be placed into separate recycling containers. To measure community support for a change to the recycling program, the supervisor visits a busy shopping area and asks randomly selected residents to respond to the following question: "Do you agree that responsible citizens would separate their recycled items by type of material?” What type of bias could be present in the survey results and what is a likely direction of the bias in estimating community support for the change to the recycling program?
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