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The Wind Mountain archaeological site is located in soutwestern New Mexico. Wind Mountain was home to a 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 archaelogical artifcats.

85 45 120 80 75 55 65 60

65 95 90 70 75 65 68

(A) By showing work with mean and sample standard deviation, verify that x bar is approximately equal to 74.2 cm and s is about 18.3 cm.

(B) Compute a 95% confidence interval for the mean depth 'mhu' at which archaeologicial artifacts from the Wind Mountain excavation site can be found.

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Category:- Statistics and Probability
Reference No.:- M9999425

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