Answer:
umm can u explain more plz
Step-by-step explanation:
Answer:
Its 7 hope i helped
Step-by-step explanation:
Answer:
y=15
Step-by-step explanation:
y-7=8
Add 7 to each side to cancel out the 7 next to the variable.
You get y=15.
Answer:
GCHE
Step-by-step explanation:
Mean = 133.9
then calculate the z value
with z value you will find out the p value on a table.
if the p value is below .05 reject the null hypotheses