5. A copy editor thinks the standard deviation for the number of pages in a romance novel is greater than 6. A sample of 25 novels has a standard deviation of 9 pages. At a = 0.05, is it higher, as the editor hypothesized? a. State the hypotheses and identify the claim. Null hypothesis : o = 6 Alternative hypothesis : o > 6 b. Identify the statistical test to be used. (n–1)x² For testing use X2 = follows chi-square with (n-1) degree of freedom [X - 1] c. Find for the critical value(s). Critical value = X224 = 36.42X242 = 36.42 d. Sketch a curve with the rejection and non-rejection region. e. Computer for the test value. f. Make the decision. g. Interpret the results е.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question

please help me answer the reamining questions. i reuploaded this for the second time. please help me answer the rest. i give a thumbs up if its answered all. thank you

5. A copy editor thinks the standard deviation for the number of pages in a romance novel is greater
than 6. A sample of 25 novels has a standard deviation of 9 pages. At a = 0.05, is it higher, as the
editor hypothesized?
a. State the hypotheses and identify the claim.
Null hypothesis : 0 = 6
Alternative hypothesis : o > 6
b. Identify the statistical test to be used.
(n–1)s²
For testing use X² =
follows chi-square with (n-1) degree of freedom [Xn-1]
Find for the critical value(s).
с.
Critical value = X224 = 36.42X242 = 36.42
d. Sketch a curve with the rejection and non-rejection region.
e. Computer for the test value.
f. Make the decision.
g. Interpret the results
Transcribed Image Text:5. A copy editor thinks the standard deviation for the number of pages in a romance novel is greater than 6. A sample of 25 novels has a standard deviation of 9 pages. At a = 0.05, is it higher, as the editor hypothesized? a. State the hypotheses and identify the claim. Null hypothesis : 0 = 6 Alternative hypothesis : o > 6 b. Identify the statistical test to be used. (n–1)s² For testing use X² = follows chi-square with (n-1) degree of freedom [Xn-1] Find for the critical value(s). с. Critical value = X224 = 36.42X242 = 36.42 d. Sketch a curve with the rejection and non-rejection region. e. Computer for the test value. f. Make the decision. g. Interpret the results
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,