Here are summary statistics for randomly selected weights of newborn​ girls: n=36​, x=3180.6​g,s=700.5 g. Use a confidence level of 95​% to complete parts​ (a) through​ (d) below.       Question content area bottom Part 1 a.Identify the critical value tα/2 used for finding the margin of error.   ​(Round to two decimal places as​ needed.) Part 2 b. Find the margin of error.   E=enter your response here (Round to one decimal place as​ needed.)   Part 3 c. Find the confidence interval estimate ofμ.     g<μ

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Here are summary statistics for randomly selected weights of newborn​ girls:
n=36​, x=3180.6​g,s=700.5 g. Use a confidence level of 95​%
to complete parts​ (a) through​ (d) below.
 
 
 

Question content area bottom

Part 1
a.Identify the critical value tα/2
used for finding the margin of error.
 
​(Round to two decimal places as​ needed.)
Part 2
b. Find the margin of error.
 
E=enter your response here
(Round to one decimal place as​ needed.)
 
Part 3
c. Find the confidence interval estimate ofμ.
 
 
g<μ<enter your response here
g
​(Round to one decimal place as​ needed.)
Part 4
d.
Write
a brief statement that interprets the confidence interval. Choose the correct answer below.
 
 
A.
There is a
95​%
chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound.
 
B.
One has
95​%
confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls.
 
C.
Approximately
95​%
of sample mean weights of newborn girls will fall between the lower bound and the upper bound.
 
D.
One has
95​%
confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.
 
 
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