U got a 44 on your test so 20 percent of 68.70 plus the 44
Answer:
(115.2642, 222.7358).
Step-by-step explanation:
Given data:
type A: n_1=60, xbar_1=1827, s_1=168
type B: n_2=180, xbar_2=1658, s_2=225
n_1 = sample size 1, n_2= sample size 2
xbar_1, xbar_2 are mean life of sample 1 and 2 respectively. Similarly, s_1 and s_2 are standard deviation of 1,2.
a=0.05, |Z(0.025)|=1.96 (from the standard normal table)
So 95% CI is
(xbar_1 -xbar_2) ± Z×√[s1^2/n1 + s2^2/n2]
=(1827-1658) ± 1.96×sqrt(168^2/60 + 225^2/180)
= (115.2642, 222.7358).
X=45, X=62
X=73 thank me i am your savior I gave you the answer say thank you now you know
28(7) + 30(25) = 946 square inches
hope this helps!!
Find the LCM (least common multiple) of the denominators, and use that as the denominator for the two fractions.
Ex.
LCM (3, 4) is 12
=
