Solution Found!
Students took n = 35 samples of water from the east basin
Chapter 7, Problem 11E(choose chapter or problem)
Students took \(n=35\) samples of water from the east basin of Lake Macatawa (see Example 7.1-4) and measured the amount of sodium in parts per million. For their data, they calculated \(\bar{x}=24.11\) and \(s^{2}=24.44\). Find an approximate \(90 \%\) confidence interval for \(\mu\), the mean of the amount of sodium in parts per million.
Equation Transcription:
Text Transcription:
n=35
Bar x=24.11
s^2=24.44
90%
mu
Questions & Answers
QUESTION:
Students took \(n=35\) samples of water from the east basin of Lake Macatawa (see Example 7.1-4) and measured the amount of sodium in parts per million. For their data, they calculated \(\bar{x}=24.11\) and \(s^{2}=24.44\). Find an approximate \(90 \%\) confidence interval for \(\mu\), the mean of the amount of sodium in parts per million.
Equation Transcription:
Text Transcription:
n=35
Bar x=24.11
s^2=24.44
90%
mu
ANSWER:
Step 1 of 2
Given,
Sample size,
Sample mean,
Sample standard deviation,
We have to find the approximate 90% confidence interval for 