Question

question 20
4 points
a study of gym members was conducted to see if machine - users were more prone to injury than free - weight users. we did a quick survey on august 1, 2003, for 1,100 gym members, of which 850 were machine - users and 250 were free weight users. we found that 73 machine - users and 14 free - weight users reported an injury, these are prevalent cases.
fill in the 2 x 2 table for the study above. (4 points)

	injured	not injured	total
free - weight users	blank 3	blank 4	250
total	87	1013	1100

blank 1 add your answer
blank 2 add your answer
blank 3 add your answer
blank 4 add your answer

Explanation:

Step1: Determine number of injured machine - users

We are given that 73 machine - users reported an injury, so Blank 1 = 73.

Step2: Calculate number of non - injured machine - users

The total number of machine - users is 850 and 73 are injured. So, Blank 2=850 - 73 = 777.

Step3: Determine number of injured free - weight users

We are given that 14 free - weight users reported an injury, so Blank 3 = 14.

Step4: Calculate number of non - injured free - weight users

The total number of free - weight users is 250 and 14 are injured. So, Blank 4=250 - 14 = 236.

Answer:

Blank 1: 73
Blank 2: 777
Blank 3: 14
Blank 4: 236