Question

Morning for z-score: evening flight Z score :​

Answer 1

Answer:

See below

Step-by-step explanation:

Morning flight   mean 15 minutes    SD = 5

   30 minutes late would be    15/5 = 3 SD  below the mean

           z  = 3

Evening    mean  20 minutes    being 10 more minutes late = 10/3 =3.33 below the mean

         z score = 3.33

evening is more late than the AM