Express the confidence interval 172.3<\mu<229.1 in the form of \bar{x}\pm ME.

UkusakazaL

UkusakazaL

Answered question

2021-08-02

Express the confidence interval 172.3<μ<229.1 in the form of x±ME.

Answer & Explanation

Tyra

Tyra

Beginner2021-08-08Added 1 answers

Step 1
We know that,
XM.E.<μ<X+M.E.
(1) XM.E.=172.3
(2) X+M.E.=229.1
By adding (1) and (2), we have
2X=172.3+229.1
X=401.42
X=200.7
and,
M.E.=200.7172.3
M.E.=28.4
Answer =X¯±M.E.=200.7±28.4 

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