statistics problem help

[DarkManX]

im trying to do some test practice problems and cant seem to figure this out, can anyone help me? problem

 

[DarkManX]

and this one please help me here

 

[bonkers325]

you need to do a hypothesis test

 

[DarkManX]

i know that

 

[bonkers325]

try a t test

 

[imthebadguy]

t test with pooled st.dev? something like that??? man i hated stats

 

[RaynorWolfcastle]

This looks like a pretty straightforward plug and chug number; however since you posted it in a .bmp file I will refuse to help out of principle.