Answer: the probability that the mean price for the sample was between $3.781 and $3.811 that week is 0.94122
Step-by-step explanation:
Given that;
sample size n = 32
mean μ = $3.796
standard deviation σ = 0.045
P(3.781 < x" < 3.811) = ?
Standard Error S.E = σ/√n = 0.045/√32 = 0.007955
z value for 3.781, z = x-μ/S.E = (3.781-3.796)/0.007955 = -1.8856 ≈ -1.89
z value for 3.811, z = x-μ/S.E = (3.811-3.796)/0.007955 = 1.8856 ≈ 1.89
P(3.781 < x" < 3.811) = P( -1.89 < z < 1.89)
= P(z < 1.89) - P(z < -1.89)
from z-score table
⇒ 0.9706 - 0.02938
⇒ 0.94122
Therefore the probability that the mean price for the sample was between $3.781 and $3.811 that week is 0.94122
Answer:
<em>A≈606.32</em>
Step-by-step explanation:
you need to use this equation: A=πr(r+h^2+r^2) to figure it out...
just plug your length, height, and radius in, and u have ur answer!!
ur answer shud be <em>A≈606.32</em>
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Hope this helps!!
Answer: Steve
Step-by-step explanation: Adam --->Joe
Steve ---> Max
Steve ---> Adam
Adam is older than Joe, Steve is older than Max and Steve is older tham Adam. If Adam and Steve are the older than the others ones mentioned and Steve is older than Adam, Steve is the oldest of all 4.
Answer:
f(X) = X + 8 g(x) = -4x - 3
(f + g)(x) =(x + 8 - 4x - 3)
=( -3x + 5)
then the answer is A
