Question
In: Statistics and Probability
Greta wants to know what the average number of pages is in the books she’s read...
Greta wants to know what the average number of pages is in the books she’s read over the last year. She creates a simple random sample of 10 books she has read in the last year and records their page numbers below: Summarize the average number of pages, and the standard deviation of the data set below. In addition to showing your work, make sure to write a final sentence summarizing both values.
307
385
412
204
99
252
110
365
188
203
Solutions
Expert Solution
Total pages of 10 books = 307 + 385 + 412 +204 +99 +252 +110 +365 + 188 + 203
= 2525
1) Average number of pages in the book greta reads is (
)
Total pages of 10 books / total number of
books
2) Standard deviation of the given data set is
in above eqaution 
--------------------- from 1)
Average number of pages in the book greta reads is 252.5 and its
standard deviation is 139.5272 .
Hope this satisfy your needs , Please hit the like button
orchestra answered 1 year agoRelated Solutions
Assume you have noted the following prices for books and the number of pages that each...
Assume you have noted the following prices for books and the
number of pages that each book contains. Book Pages (x) Price (y) A
500 $7.00 B 700 7.50 C 750 9.00 D 590 6.50 E 540 7.50 F 650 7.00 G
480 4.50 a. Perform an F test and determine if the price and the
number of pages of the books are related. Let ? = 0.01. b. Perform
a t test and determine if the price and the...
Assume you have noted the following prices for books and the number of pages that each...
Assume you have noted the following prices for books and the
number of pages that each book contains.
Book
Pages (x)
Price (y)
A
500
$7.00
B
700
7.50
C
750
9.00
D
590
6.50
E
540
7.50
F
650
7.00
G
480
4.50
a.
Develop a least-squares estimated regression line. Show your
work. Use my Power point slides as your guide (slides 13-37).
b.
Compute the coefficient of determination using the Excel output
(pg. 125) and explain its meaning....
Assume you have noted the following prices for books and the number of pages that each...
Assume you have
noted the following prices for books and the number of pages that
each book contains.
Book
Pages
(x)
Price
(y)
A
500
$7.00
B
700
7.50
C
750
9.00
D
590
6.50
E
540
7.50
F
650
7.00
G
480
4.50
Required:
a.
Perform an F test and determine if the
price and the number of pages of the books are related.
Let a = 0.01.
b.
Perform a t test and determine if the
price and...
Assume you have noted the following prices for books and the number of pages that each...
Assume you have
noted the following prices for books and the number of pages that
each book contains.
Book
Pages
(x)
Price
(y)
A
500
$7.00
B
700
7.50
C
750
9.00
D
590
6.50
E
540
7.50
F
650
7.00
G
480
4.50
Required:
a.
Perform an F test and determine if the
price and the number of pages of the books are related.
Let a = 0.01.
b.
Perform a t test and determine if the
price and...
Assume you have noted the following prices for books and the number of pages that each...
Assume you have
noted the following prices for books and the number of pages that
each book contains.
Book
Pages
(x)
Price
(y)
A
500
$7.00
B
700
7.50
C
750
9.00
D
590
6.50
E
540
7.50
F
650
7.00
G
480
4.50
Required:
a.
Perform an F test and determine if the
price and the number of pages of the books are related.
Let a = 0.01.
b.
Perform a t test and determine if the
price and...
Assume that books from a certain publisher have an average of one misprint every 20 pages....
Assume that books from a certain publisher have an average of
one misprint every 20 pages. (a) What is the probability that a
given page has two or more misprints? (b) What is the probability
that a book of 200 pages has at least one page with two or more
misprints?
An Analyst wants to know if there was a significance difference in the average of hours...
An Analyst wants to know if there was a significance difference
in the average of hours worked in a week from 2000 (Group 1) to
2004 (Group 2). He gathers all the data from the General Social
Survey, and lists the following summary statistics from the
sampling.
Year
2000
2004
Mean
27.34
48.12
Std. Dev
10.11
19.23
Unweighted n
43
54
Source: General Social Survey (sda.berkeley.edu )
What is the correct null hypothesis?
Ho: mu2004-mu2000 < 0
Ho: mu2004-mu2000 does...
According to a magazine, people read an average of more than two books in a month....
According to a magazine, people read an average of more than
two books in a month. A survey of 20 random individuals found that
the mean number of books they read was 1.8 with a standard
deviation of 1.28.
a. To test the magazine's claim, what should the appropriate
hypotheses be?
b. Compute the test statistic.
c. Using a level of significance of 0.05, what is the critical
value?
d. Find the p-value for the test.
e. What is your...
A administrator wants to know what is the average starting salary, μ, for students graduating from...
A administrator wants to know what is the average starting
salary, μ, for students graduating from her college. She is able to
obtain data for 100 randomly selected students. For these 100
students, the average is $70,000, and the SD is $10,000. What is a
99% confidence interval for μ?
A store manager claims that the average number of pages a person copies on the store’s...
A store manager claims that the average number of pages a person
copies on the store’s copy machine is greater than 31. A sample of
50 customers’ orders is selected. At the = 0.10 level, is there
enough evidence to support the claim? Use the Pvalue. Assume s =
30.9 and x = 32.4
State:__________________________________
p-value:_________________________
Decide:________________________________ Summary: (remember to
circle the correct description before completing the statement)
There is/is not enough evidence to reject/support the claim
that______________________
________________________________________________________________________...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- This is all one question, thank you so much in advance! You must evaluate a proposal...
- X Company is considering the purchase of a new processor that costs $200,000. Shipping and setup...
- There are a large number of tasks involved in information technology and programming, and many of...
- Using one quantitative and one qualitative health policy research method described in this chapter, design a...
- What is the Rawls' solution to the age-old question of social (economic / distributive) justice?...
- St. Johns River Shipyards' welding machine is 15 years old, fully depreciated, and has no salvage...
- The following information is available for Robstown Corporation for 20Y8: Inventories January 1 December 31 Materials...
ADVERTISEMENT