Amarketing company surveys 100 males and 100 females between the ages of 55 and 70 to determine how many times they text each day. the mean for males is 6 with a range of 4. the mean for the females is 8 with a range of 4. according to the statistics, which statement is true? a) on average, females text more than males. b) on average, females text less than males. c) on average, females and males text about the same . d) on average, both males and females text 4 times each day.

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb.the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.