One of the survey questions is intended to look into how often people play video games. which presents the greatest threat to the usefulness of the data obtained from the answers to the question?

how often do you play video games?

a) rarely to never b) occasionally to frequently
a.
survey participants’ ideas about what constitutes rare, occasional, and frequent playing may vary greatly.
b.
many survey participants’ playing habits fall outside the range “never – frequently.”
c.
many survey participants will be reluctant to admit that they do not like playing video games.
d.
most survey participants will have difficulty deciding which means more playing – “rarely” or “occasionally.”

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.