Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation of 10. For a sample of 15-year-old girls, the mean is 165 centimeters with a standard deviation of 8. If 8 boys and 8 girls were sampled, the standard deviation of the difference is (Blank Box). (Round your answer to the nearest hundredth.)

OpenStudy (anonymous):

@triciaal Please help if you can :)

OpenStudy (triciaal):

sorry not the best stats person

OpenStudy (triciaal):

@jim_thompson5910

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Ultrilliam: Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
1 hour ago 11 Replies 2 Medals
Twaylor: was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
6 hours ago 1 Reply 0 Medals
AndreW2002: There is an error when sending GIFs, is this known or is this a level requirement
8 hours ago 10 Replies 0 Medals
serenitystXrgazer: Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
6 hours ago 5 Replies 1 Medal
Aubree: Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
1 day ago 10 Replies 2 Medals
thereneelg: ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
3 days ago 6 Replies 1 Medal
kamariana: The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
4 days ago 0 Replies 0 Medals
chuckD: hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
4 days ago 2 Replies 1 Medal
DoltonCarlee: So like do y'all know anything about the first world war?
3 days ago 2 Replies 0 Medals
thehearken: anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
3 days ago 5 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!