David E. Brown is an expert in wildlife conservation. In his book The Wolf in the Southwest: The Making of weights of adult grey wolves from two regions in Old Mexico. Chihuahua region: x, variable in pounds 86 75 91 70 79 80 68 71 74 64 Durango region: x2 variable in pounds 68 72 79 68 77 89 62 55 68 68 59 63 66 58 54 71 59 67 (a) Use a calculator with mean and standard deviation keys to calculate x1, s1, x2, and s2. (Use 2 X1 X2 52
David E. Brown is an expert in wildlife conservation. In his book The Wolf in the Southwest: The Making of weights of adult grey wolves from two regions in Old Mexico. Chihuahua region: x, variable in pounds 86 75 91 70 79 80 68 71 74 64 Durango region: x2 variable in pounds 68 72 79 68 77 89 62 55 68 68 59 63 66 58 54 71 59 67 (a) Use a calculator with mean and standard deviation keys to calculate x1, s1, x2, and s2. (Use 2 X1 X2 52
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
How would you figure out these two problems?
![David E. Brown is an expert in wildlife conservation. In his book The Wolf in the Southwest: The Making of an Endangered Species (University of Arizona Press), he records the following
weights of adult grey wolves from two regions in Old Mexico.
Chihuahua region: x, variable in pounds
86 75 91
70 79
80
68 71 74 64
Durango region: x2 variable in pounds
68
72 79
68
77 89 62 55 68
68
59
63 66
58
54 71 59
67
(a) Use a calculator with mean and standard deviation keys to calculate x1, S1, X2, and s3. (Use 2 decimal places.)
x1
S1
X2
(b) Let uj be the mean weight of the population of all grey wolves in the Chihuahua region. Let u2 be the mean weight of the population of all grey wolves in the Durango region.
Find a 98% confidence interval for uj - µz. (Use 2 decimal places.)
lower limit
upper limit](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8619578c-37b5-4fb0-aae6-ee38ee9fdc66%2Fa7745aa7-f802-4ebf-bddd-278802bb0a8d%2Fu2gc8mh_processed.png&w=3840&q=75)
Transcribed Image Text:David E. Brown is an expert in wildlife conservation. In his book The Wolf in the Southwest: The Making of an Endangered Species (University of Arizona Press), he records the following
weights of adult grey wolves from two regions in Old Mexico.
Chihuahua region: x, variable in pounds
86 75 91
70 79
80
68 71 74 64
Durango region: x2 variable in pounds
68
72 79
68
77 89 62 55 68
68
59
63 66
58
54 71 59
67
(a) Use a calculator with mean and standard deviation keys to calculate x1, S1, X2, and s3. (Use 2 decimal places.)
x1
S1
X2
(b) Let uj be the mean weight of the population of all grey wolves in the Chihuahua region. Let u2 be the mean weight of the population of all grey wolves in the Durango region.
Find a 98% confidence interval for uj - µz. (Use 2 decimal places.)
lower limit
upper limit
![Sherds of clay vessels were put together to reconstruct rim diameters of the original ceramic vessels at the Wind Mountain archaeological sitet. A random sample of ceramic vessels gave
the following rim diameters (in centimeters).
15.9
13.4
22.1 12.7
13.1
19.6
11.7
13.5
17.7
18.1
(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.)
cm
S =
cm
(b) Compute a 90% confidence interval for the population mean u of rim diameters for such ceramic vessels found at the Wind Mountain archaeological site. (Round your answers
to one decimal place.)
lower limit
cm
upper limit
cm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8619578c-37b5-4fb0-aae6-ee38ee9fdc66%2Fa7745aa7-f802-4ebf-bddd-278802bb0a8d%2Fqgwyc29_processed.png&w=3840&q=75)
Transcribed Image Text:Sherds of clay vessels were put together to reconstruct rim diameters of the original ceramic vessels at the Wind Mountain archaeological sitet. A random sample of ceramic vessels gave
the following rim diameters (in centimeters).
15.9
13.4
22.1 12.7
13.1
19.6
11.7
13.5
17.7
18.1
(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.)
cm
S =
cm
(b) Compute a 90% confidence interval for the population mean u of rim diameters for such ceramic vessels found at the Wind Mountain archaeological site. (Round your answers
to one decimal place.)
lower limit
cm
upper limit
cm
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
Step 1
Given,
X1 | X2 |
85 | 68 |
75 | 72 |
91 | 79 |
70 | 68 |
79 | 77 |
80 | 89 |
68 | 62 |
71 | 55 |
74 | 68 |
64 | 68 |
59 | |
63 | |
66 | |
58 | |
54 | |
71 | |
59 | |
67 |
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