Answer:
A.)
Step-by-step explanation:
Answer:
<h2>
$5.03</h2>
Step-by-step explanation:
Given data
Sample Mean (M): $48.77
Sample Size (n): 20
Standard Deviation (σ) : $17.58
Confidence Level: 80%
we know that z*-Values for 80% Confidence Levels is 1.28
the expression for margin of error is given bellow\
MOE= z*σ/√n
We can now substitute into the expression and solve for the MOE as
MOE= 1.28*17.58/√20
MOE= 22.502/4.47
MOE= 22.502/4.47
MOE= 5.03
The margin of error for a 80 % confidence interval is $5.03
Answer:
156ft would be the answer
Step-by-step explanation:
Simple, 184-28=156. If it was the area you would divide 184 by 28 to get about 6.57.
L+W=P
aka length + width= perimeter. But LxW=Area, LxW=A, or bXh (base times the height)
