STAT 204 – LAB 7 – 3/27/20 Instructions: • Show all of your work.
NAME: ___________________________ • Turn in your completed lab to canvas as a .pdf file by
Lab Section: ______________ 5pm Tuesday.
Score (20 pts): ____________
________________________________________________________________________________________________________________________________________________________________________________________________________________________
An experiment was done to investigate if drivers’ reaction times
were affected by cell phone use. A sample of students (aged 18-
25) from a university was taken and the participants were
randomly assigned to two groups. In group 1 the driver had to talk
on the phone with someone in a different room. In group 2 the
Group
Sample
Size
Average
Standard
Deviation
1
(
on phone
)
32
585
90
2
(no
t on
phone)
32
534
65
