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A survey of 1,000 households has a 40% non-response rate. Of the 600 respondents, 45% report owning a smartphone. The researchers want to adjust for non-response using 400 non-respondents who were later contacted by phone. Of these phone-contacted non-respondents, 68% own a smartphone. Using the post-stratification adjustment formula: What is the adjusted estimate of smartphone ownership?
A survey of 1,000 households has a 40% non-response rate. Of the 600 respondents, 45% report owning a smartphone. The researchers want to adjust for non-response using 400 non-respondents who were later contacted by phone. Of these phone-contacted non-respondents, 68% own a smartphone. Using the post-stratification adjustment formula: What is the adjusted estimate of smartphone ownership?