The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home to an ancient culture of prehistoric Native Americans called Anasazi random sample of excavations at Wind Mountain gave the following depths (in centimeters) from present-day surface grade to the location of significant archaeological artifa 85 45 120 80 75 55 65 60 65 95 90 70 75 65 68 (a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers to one decima cm cm (b) Compute a 80% confidence interval for the mean depth u at which archaeological artifacts from the Wind Mountain excavation site can be found. (Round your ar one decimal place.) lower limit cm upper limit cm
The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home to an ancient culture of prehistoric Native Americans called Anasazi random sample of excavations at Wind Mountain gave the following depths (in centimeters) from present-day surface grade to the location of significant archaeological artifa 85 45 120 80 75 55 65 60 65 95 90 70 75 65 68 (a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers to one decima cm cm (b) Compute a 80% confidence interval for the mean depth u at which archaeological artifacts from the Wind Mountain excavation site can be found. (Round your ar one decimal place.) lower limit cm upper limit cm
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Transcribed Image Text:The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home to an ancient culture of prehistoric Native Americans called Anasazi. 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 artifactst.
85 45
120
80
75 55 65
60
65 95
90
70
75
65
68
(a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers to one decimal place.)
X =
cm
S =
cm
(b) Compute a 80% confidence interval for the mean depth u at which archaeological artifacts from the Wind Mountain excavation site can be found. (Round your answers to
one decimal place.)
lower limit
cm
upper limit
cm
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85,45,120,80,75,55,65,60,65,95,90,70,75,65,68
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