Question

The management requested that the time of waiting on line for beverages shouldn’t take longer than 5 minutes on average; 10 volunteers recorded their waiting time (in seconds). They reported the following set of data:

Name	Time	Z-Score
Simpson	315	Blank 1
Scott	310	Blank 2
Maurice	285	Blank 3
Dario	300	Blank 4
Vincent	240	Blank 5
Daniel	285	Blank 6
Alexander	320	Blank 7
Toni	300	Blank 8
Ivan	275	Blank 9
Johan	300	Blank 10

Calculate each z-score to 4 decimal places

10 points

Answer 1