Question
1. Go to a local library; collect a sample of books consisting of the ages of...
1. Go to a local library; collect a sample of books consisting of the ages of book (based on copyright dates). Plan and describe the sampling procedure, then use the results to construct a confidence interval estimate of the mean age of all books in the library.
2. Use the mean and the standard deviation obtained from the last module and test the claim that the mean age of all books in the library is greater than 2005.
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
Go to a local library; collect a sample of books consisting of the ages of book...
Go to a local library; collect a sample of books consisting of
the ages of book (based on copyright dates). Plan and describe the
sampling procedure, then use the results to construct a confidence
interval estimate of the mean age of all books in the library.
The librarian at the local elementary school claims that, on average, the books in the library...
The librarian at the local elementary school claims that, on
average, the books in the library are more than 20 years old. To
test this claim, a student takes a sample of n=30 books and records
the publication date for each. The sample produces an average age
of M=23.8 years with a variance of s^2 = 67.5. Use this sample to
conduct a one-tailed test with a=.01 to determine whether the
average age of the library books in significantly greater...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject Area Percent of Books on Subject in Circulation Library
on This Subject Number of Books in Sample on This Subject Business
32% 263 Humanities 25% 225 Natural...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject
Area
Percent of Books on
Subject in Circulation
Library on This Subject
Number of Books
in
Sample on This Subject
Business
32%
298
Humanities
25%
203
Natural...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject Area
Percent of Books on Subject in Circulation
Library on This Subject
Number of Books in
Sample on This Subject
Business
32%
260
Humanities
25%
216
Natural...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject
Area
Percent of Books on
Subject in Circulation
Library on This Subject
Number of Books
in
Sample on This Subject
Business
32%
259
Humanities
25%
225
Natural...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject
Area
Percent of Books on
Subject in Circulation
Library on This Subject
Number of Books
in
Sample on This Subject
Business
32%
253
Humanities
25%
221
Natural...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject Area Percent of Books on Subject in
Circulation
Library on This Subject Number of Books in
Sample on This Subject
Business 32% 303
Humanities 25% 204
Natural...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject
Area
Percent of Books on
Subject in Circulation
Library on This Subject
Number of Books
in
Sample on This Subject
Business
32%
294
Humanities
25%
204
Natural...
The director of library services at a college did a survey of types of books (by...
The director of library services at a college did a survey of
types of books (by subject) in the circulation library. Then she
used library records to take a random sample of 888 books checked
out last term and classified the books in the sample by subject.
The results are shown below.
Subject
Area
Percent of Books on
Subject in Circulation
Library on This Subject
Number of Books
in
Sample on This Subject
Business
32%
283
Humanities
25%
208
Natural...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 36 minutes ago
asked 40 minutes ago
asked 40 minutes ago
asked 48 minutes ago
asked 48 minutes ago
asked 49 minutes ago
asked 56 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago