Answer
It would not be unusual to identify 240 adult Americans who find that the overall state of moral values in the US is poor. This is because 240 is within two standard deviations of the mean.
Work Step by Step
If the observation is at least 2 standard deviations away from the mean (less than μ−2σ or greater than μ+2σ) then it is considered unusual.
μ−2σ = 225 - 2(11.1) = 202.8
μ+2σ = 225 + 2(11.1) = 247.2
Since 240 falls between 202.8 and 247.2 it is not an unusual value.
