Let X equal the amount of fluoride in a certain brand of
Chapter 7, Problem 9E(choose chapter or problem)
Let \(X\) equal the amount of fluoride in a certain brand of toothpaste. The specifications are \(0.85-\) \(1.10 \mathrm{mg} / \mathrm{g}\). Table 6.1-3 lists \(100 \mathrm{such}\) measurements.
(a) Give a point estimate of the median \(m=\pi_{0.50}\).
(b) Find an approximate \(95 \%\) confidence interval for the median \(m\). If possible, use a computer to find the exact confidence level.
(c) Give a point estimate for the first quartile.
(d) Find an approximate \(95 \%\) confidence interval for the first quartile and, if possible, give the exact confidence coefficient.
(e) Give a point estimate for the third quartile.
(f) Find an approximate \(95 \%\) confidence interval for the third quartile and, if possible, give the exact confidence coefficient.
Equation Transcription:
Text Transcription:
X
0.85- 1.10mg/g
100
m=0.50
m
95%
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