Let X equal the amount of fluoride in a certain brand of toothpaste. The specifications
Chapter 7, Problem 7.5-9(choose chapter or problem)
Let X equal the amount of fluoride in a certain brand of toothpaste. The specifications are 0.85 1.10 mg/g. Table 6.1-3 lists 100 such measurements. (a) Give a point estimate of the median m = 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.
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