8cm
6/3=y/4 ________ cross multiply
3y=24 ________ divide by 3
y=8
Answer:
4
Step-by-step explanation:
14(12)-200(3.2)
168-640= -472
For a two-tailed test we need to halve 0.01, giving 0.005. Then we need to sutract 0.005 from 0.5, giving 0.5 - 0.005 = 0.495. Looking up the p value of 0.495 in an inverse normal probability table we obtain the value z = 2.5758. Therefore the critical values are -2.5758 and 2.5758.
