Please check this!! I will give you a shiny medal! I just want to be sure I'm correct :)

Question

lacris · Answer

attachment

lacris · Answer

So I did 193 + 2(9.3) = 211.6 to find $$\mu+2 \sigma$$

lacris · Answer

and I did, 193 - 2(9.3) = 174, so between the two values, 188 - 350 isn't really in that range

lacris · Answer

But I did ask for you to check this honestly :< do you know if I am correct?

lacris · Answer

|dw:1476332883184:dw| so would it be No, it's not unusual?

dumbcow · Answer

No, your work is correct but you interpreted it incorrectly.

So by using 2 std deviations you have 95% confidence interval
It is only unusual if 188 is outside this interval

lacris · Answer

So it's normal then right? Since 188 is between 174 and 211.6 it's normal right? :)

dumbcow · Answer

yes

lacris · Answer

So how did I interpret it wrong? Is my line graph incorrect?

dumbcow · Answer

oh sorry i was basing that on you answered "yes" in the screenshot

lacris · Answer

Ooh, okay, that was my past answer, so I was just double checking, thank you :)