Answer:
4 out of 15
Step-by-step explanation:
Answer: I think the answer is b
Step-by-step explanation:
Answer:
standard error of the mean = 1.6960
Step-by-step explanation:
Given -
Mean
= 53 minutes
Standard deviation ( s ) = 53.9 minutes
n = 1010
standard error of the mean =
=
= 
= 1.6960