Here are summary statistics for randomly selected weights of newborn​ girls: n=196​, x=28.2 ​hg, s=7.8 hg. Construct a confidence interval estimate of the mean. Use a 98​% confidence level. Are these results very different from the confidence interval 25.9 hg<μ<30.7 hg with only 15 sample​ values, x=28.3 ​hg, and s=3.5 ​hg? What is the confidence interval for the population mean μ​?   I can't get my numbers to jive please help!!

MATLAB: An Introduction with Applications
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Here are summary statistics for randomly selected weights of newborn​ girls:
n=196​,
x=28.2
​hg,
s=7.8
hg. Construct a confidence interval estimate of the mean. Use a
98​%
confidence level. Are these results very different from the confidence interval
25.9
hg<μ<30.7
hg with only
15
sample​ values,
x=28.3
​hg, and
s=3.5
​hg?
What is the confidence interval for the population mean
μ​?
 
I can't get my numbers to jive please help!!
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