According to CTIA, 25% of all U.S. households are wireless-only households. In a simple random sample of 385 households, determine the mean and standard deviation number of wireless-only households. Test this binomial for symmetry and create an interval of usual values (if applicable). Would getting 52 households be considered unusual? If we got 52 households, what does this imply about the number of U.S. households that are wireless only?

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