The USA has been invaded by a ship of 6 aliens -- well, sort of,they actually just flew here from planet YB54D (known to themsimply as "Home") as a part of their search for extraterrestriallife. Our military contained them immediately and we are holdingthem captive for further study (from this sample of 6 aliens wehope to be able to predict what the rest of their kind -- i.e.,their entire population -- will be like). One of the first thingswe want to assess is their hostility; thus, we send in apsychologist who administers the Buss-Perry AggressionQuestionnaire (BPAQ), which rates hostility on a scale of 8 to40, with higher ratings indicating higher hostility. Their scoresare as follows:
Alien 1: 20 Alien 4: 9
Alien 2: 17 Alien 5: 13
Alien 3: 31 Alien 4: 38
What would the BPAQ score be of an alien who is 1.5 standarddeviations below the mean (round to two decimal places)?
What would the BPAQ score be of an alien who is 1 standarddeviation above the mean (round to two decimals)?
