3.4
5 The z-score for 34-week gestation period is -1/33, and the z-score for 40-week gestation period is -20/47. The baby in the 40-week gestation period weighs less relative to the gestation period.
7 A 70-inch woman is relatively taller.
9 Johnson had a better year relative to his peers because his z-score is less distance away from the mean than Hernandez’s z-score.
11 Will Power had the more convincing win because his z-score is further from the mean.
13 An applicant must receive at least a 239 on the test in order to be accepted.
15 a) 15% of the head circumference of males 3-5 months old is less than or equal to 41.0 cm. b) 90% of the waist of two-year old females is less than of equal 52.7 cm. c) I would conclude that men get shorter as they enter their 50s and above.
22 a) mean is 201.6/20=10.08 (7.8 - 10.08)/??standard deviation b) Quartiles are 7.8, 9.6, and 10.6 c) IRQ=2.8 d)?
25 ??