Question

In: Statistics and Probability

David E. Brown is an expert in wildlife conservation. In his book The Wolf in the...

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: x1 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 decimal places.)

x1
s1
x2
s2


(b) Let μ1 be the mean weight of the population of all grey wolves in the Chihuahua region. Let μ2 be the mean weight of the population of all grey wolves in the Durango region. Find a 90% confidence interval for μ1 – μ2. (Use 2 decimal places.)

lower limit
upper limit

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

David E. Brown is an expert in wildlife conservation. In his book The Wolf in the...
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: x1 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...
According to the Wildlife Service there is a 10% chance that a wolf will howl when...
According to the Wildlife Service there is a 10% chance that a wolf will howl when the moon light intensity falls to or below 30cd/m. A group of zoologist in Lisbon thinks that the chance is much higher than 10%. In order to conduct a preliminary study they consider a small pack of wolves with 32 wolves in their sample. Answer the following questions. (a)   According to the Wildlife Service, if the moon light intensity drop to or below 30cd/m,...
David Ricardo was the first economist to elaborate the theory of comparative advantage in his book...
David Ricardo was the first economist to elaborate the theory of comparative advantage in his book On the Principles of Political Economy and Taxation. Ricardo wrote: Under a system of perfectly free commerce, each country naturally devotes its capital and labour to such employments as are most beneficial to each. This pursuit of individual advantage is admirably connected with the universal good of the whole . . . It is this principle, which determines that wine shall be made in...
In David Crystal's book "Language and the Internet" in chapter 4 (The language of e-mail) what...
In David Crystal's book "Language and the Internet" in chapter 4 (The language of e-mail) what is the main idea in this chapter?
Thomas Schelling, an expert on nuclear strategy and arms control, observed in his book The Strategy...
Thomas Schelling, an expert on nuclear strategy and arms control, observed in his book The Strategy of Conflict, "The power to constrain an adversary depends upon the power to bind oneself." Explain this statement using the concept of strategic commitment. Use an example from either your own business experience or economics-related research in your explanation.
Thomas Schelling, an expert on nuclear strategy and arms control, observed in his book The Strategy...
Thomas Schelling, an expert on nuclear strategy and arms control, observed in his book The Strategy of Conflict, "The power to constrain an adversary depends upon the power to bind oneself." Explain this statement using the concept of strategic commitment. Use an example from either your own business experience or economics-related research in your explanation.
Scenario Suppose you work for a wildlife conservation organization. You are working on creating a system...
Scenario Suppose you work for a wildlife conservation organization. You are working on creating a system to educate the general public about different animals and get them more interested in conservation. Aim Create a Eagle class that inherits from the Bird class and has a clutch size (eggs laid in one nesting) attribute. Change the behavior of instances of the Eagle class to include this clutch size fact when they're printed. Steps for Completion Go to your main.py file. Define...
For the following situation identify the sampling method used. The Florida Fish and Wildlife Conservation Commission...
For the following situation identify the sampling method used. The Florida Fish and Wildlife Conservation Commission manatee mortality database website has information on cause of death and size for all manatees killed off Florida waters.We decide to divide the cause of death into watercraft, natural causes, stress, and other. Within each of these groups, a random sample of 25 manatees are selected. A. systematic sampling B. stratified sampling C. simple random sampling D. cluster sampling
In the book "The Shifts and the Shocks" by Martin Wolf, of Chapter 4 How did...
In the book "The Shifts and the Shocks" by Martin Wolf, of Chapter 4 How did finance become fragile? What was the reason?
David Miller (age 34) and his wife, Emily Miller (age 33), reside at 293 E. Main...
David Miller (age 34) and his wife, Emily Miller (age 33), reside at 293 E. Main Street in Sterling, MA, 01564 with their two children whom they fully support: Catherine (age 13) and Michael (age 11). During the year, Emily worked full-time as a customer service representative at a local bank and earned $37,600. Her employer withheld the following from her wages: Federal income tax $2,250.00 State income tax 1,124.60 Social security tax 2,331.20 Medicare tax 545.20 ROTH IRA contribution...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT