For Problems 8-12, categorize each problem according to the parameter being estimated: proportion p or mean µ. Then solve the problem.
Archaeology: Excavations The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home to an ancient culture of prehistoric Native Americans called Anasa/i. A random sample of excavations at Wind Mountain gave the following depths (in centimeters) from present-day surface grade to the location of significant archaeological artifacts (Source: Mimbres Mogollon Archaeology, by A. Woosley and A. McIntyre, University of New Mexico Press).
85 | 45 | 120 | 80 | 75 | 55 | 65 | 60 |
65 | 95 | 90 | 70 | 75 | 65 | 68 |
Use a calculator with mean and sample standard deviation keys to verify that
Compute a 95% confidence interval for the mean depth µ at which archaeological artifacts from the Wind Mountain excavation site can be found.
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Student Solutions Manual for Brase/Brase's Understanding Basic Statistics, 7th
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