A sample of n = 9 electrochromic mirrors was used to
Chapter 7, Problem 3E(choose chapter or problem)
A sample of \(n=9\) electrochromic mirrors was used to measure the following low-end reflectivity percentages:
\begin{array}{lllllllll} 7.12 & 7.22 & 6.78 & 6.31 & 5.99 & 6.58 & 7.80 & 7.40 & 7.05 \end{array}
(a) Find the endpoints for an approximate \(95 \%\) confidence interval for the median, \(m\).
(b) The interval \(\left(y_{3}, y_{7}\right)\) could serve as a confidence interval for \(m\). Find it and give its confidence coefficient.
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