12 Normal Curve: Tree Rings Tree rings dates were used extensively in archaeological studies. At one site on the mesa, tree ring dates gave a mean date of ?1 = ???? 1272 with standard deviation ?1 = 35 ?????. At a second site the tree ring dates gave a mean ?2 = ???? 1122 with standard deviation ?2 = 40 ?????. Assume that both sites had dates that were approximately normally distributed. In the first area, an object was found and dated as ?1 = ???? 1250. In the second area, another object was found and dated as ?2 = ???? 1234. (a) Convert both x1 and x2 values to z values, and locate both of these values under the standard normal curve. (b) Which of these two items is the more unusual as an archaeological find in its location
12 Normal Curve: Tree Rings Tree rings dates were used extensively in archaeological studies. At one site on the mesa, tree ring dates gave a mean date of ?1 = ???? 1272 with standard deviation ?1 = 35 ?????. At a second site the tree ring dates gave a mean ?2 = ???? 1122 with standard deviation ?2 = 40 ?????. Assume that both sites had dates that were approximately normally distributed. In the first area, an object was found and dated as ?1 = ???? 1250. In the second area, another object was found and dated as ?2 = ???? 1234. (a) Convert both x1 and x2 values to z values, and locate both of these values under the standard normal curve. (b) Which of these two items is the more unusual as an archaeological find in its location
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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#12 Normal Curve: Tree Rings Tree rings dates were used extensively in archaeological
studies. At one site on the mesa, tree ring dates gave a mean date of ?1 = ???? 1272 with
standard deviation ?1 = 35 ?????. At a second site the tree ring dates gave a mean ?2
= ???? 1122 with standard deviation ?2 = 40 ?????. Assume that both sites had dates that
were approximatelynormally distributed. In the first area, an object was found and dated as ?1
= ???? 1250. In the second area, another object was found and dated as ?2 = ???? 1234.
studies. At one site on the mesa, tree ring dates gave a mean date of ?1 = ???? 1272 with
standard deviation ?1 = 35 ?????. At a second site the tree ring dates gave a mean ?2
= ???? 1122 with standard deviation ?2 = 40 ?????. Assume that both sites had dates that
were approximately
= ???? 1250. In the second area, another object was found and dated as ?2 = ???? 1234.
(a) Convert both x1 and x2 values to z values, and locate both of these values under the
standard normal curve.
(b) Which of these two items is the more unusual as an archaeological find in its location
standard normal curve.
(b) Which of these two items is the more unusual as an archaeological find in its location
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