Answer:
Either 2 or 3 but i believe it's "Yes, all the sample means are less than 10."
Step-by-step explanation:
Find Mean of means
(7+4+5+8)/4
6
7.5
Im so sorry if this is wrong im not good with word problems but
i got 2(h-3)= 9
then 2h-6=9
then 2h=15
finally h=7.5
It is TRUE
yes
3,5
You just move it to the left