Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 minutes and 24.5 minutes. What is the study's margin of error?

A) 0.5 min
B)2.25 min
C)1.65 min
D)3.3 min

Help! I don't know how to do this.

Question

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 minutes and 24.5 minutes. What is the study's margin of error?

A) 0.5 min
B)2.25 min
C)1.65 min
D)3.3 min

Help! I don't know how to do this.

anonymous · Answer

@LittleRedRiding

littleredriding · Answer

d

anonymous · Answer

I don't think it's as simple as just subtracting them... Thanks though.

anonymous · Answer

Like there's a formula and stuff.

littleredriding · Answer

http://www.calculatorsoup.com/calculators/financial/margin-calculator.php

littleredriding · Answer

try dis.

anonymous · Answer

:O Thanks! haha you're answer was right, sorry. I'll have to do more research for the formula to help on my test though.