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.
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
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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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd7c759da-e8bf-4647-babf-42f6b2206420%2Fdefa0402-ba1a-4a34-a7c1-b7e565b51dd1%2F90nc2wb_processed.png&w=3840&q=75)
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
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