In the figure on the right, Triangle EFG is congruent to Triangle LMN. Find the value of x. Then describe the Transformations th
at map triangle EFG on to Triangle LMN.
2 answers:
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Answer:
(a) Margin of error ( E) = $2,000 , n = 54
(b) Margin of error ( E) = $1,000 , n = 216
(c) Margin of error ( E) = $500 , n= 864
Step-by-step explanation:
Given -
Standard deviation = $7,500
= 1 - confidence interval = 1 - .95 = .05
=
= 1.96
let sample size is n
(a) Margin of error ( E) = $2,000
Margin of error ( E) =
E =
Squaring both side
n = 54.0225
n = 54 ( approximately)
(b) Margin of error ( E) = $1,000
E =
1000 =
Squaring both side
n = 216
(c) Margin of error ( E) = $500
E =
500 =
Squaring both side
n = 864