Applied Statistics in Business and Economics
5th Edition
ISBN: 9780077837303
Author: David Doane, Lori Seward Senior Instructor of Operations Management
Publisher: McGraw-Hill Education
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Chapter 17.5, Problem 17SE
(a)
To determine
Find the percent of sample means that should be within 1 sigma of the centreline.
(b)
To determine
Find the percent of sample means that should be within 2 sigma of the centreline.
(c)
To determine
Find the percent of sample means that should be within 3 sigma of the centreline.
(d)
To determine
Find the percent of sample means that should beoutside 2 sigma of the centreline.
(e)
To determine
Find the percent of sample means that should be outside 3 sigma of the centreline.
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I just need to know why this is wrong below:
What is the test statistic W? W=5 (incorrect)
and
What is the p-value of this test? (p-value < 0.001-- incorrect)
Use the Wilcoxon signed rank test to test the hypothesis that the median number of pages in the statistics books in the library from which the sample was taken is 400. A sample of 12 statistics books have the following numbers of pages
pages
127
217
486
132
397
297
396
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256
358
272
What is the sum of the negative ranks (W-)? 75 What is the sum of the positive ranks (W+)? 5What type of test is this? two tailedWhat is the test statistic W? 5 These are the critical values for a 1-tailed Wilcoxon Signed Rank test for n=12
Alpha Level
0.001
0.005
0.01
0.025
0.05
0.1
0.2
Critical Value
75
70
68
64
60
56
50
What is the p-value for this test? p-value < 0.001
ons
12. A sociologist hypothesizes that the crime rate is higher in areas
with higher poverty rate and lower median income. She col-
lects data on the crime rate (crimes per 100,000 residents),
the poverty rate (in %), and the median income (in $1,000s)
from 41 New England cities. A portion of the regression results
is shown in the following table.
Standard
Coefficients
error
t stat
p-value
Intercept
-301.62
549.71
-0.55 0.5864
Poverty
53.16
14.22
3.74 0.0006
Income
4.95
8.26
0.60 0.5526
a.
b.
Are the signs as expected on the slope coefficients?
Predict the crime rate in an area with a poverty rate of
20% and a median income of $50,000.
3. Using data from 50 work
Chapter 17 Solutions
Applied Statistics in Business and Economics
Ch. 17.1 - Define (a) productivity, (b) quality control, and...Ch. 17.1 - Explain the relationship between productivity and...Ch. 17.1 - Explain the difference between common cause...Ch. 17.1 - Prob. 4SECh. 17.1 - Explain the role of statisticians in quality...Ch. 17.2 - Prob. 6SECh. 17.2 - Prob. 7SECh. 17.3 - Prob. 8SECh. 17.3 - Prob. 9SECh. 17.3 - Identify three common quality improvement programs...
Ch. 17.3 - Why is the quality improvement process...Ch. 17.3 - Prob. 12SECh. 17.3 - Prob. 13SECh. 17.4 - Prob. 14SECh. 17.4 - Prob. 15SECh. 17.5 - (a) To construct control limits for an x chart,...Ch. 17.5 - Prob. 17SECh. 17.5 - List four rules for detecting abnormal (special...Ch. 17.5 - Set up control limits for an x chart, given x =...Ch. 17.5 - Prob. 20SECh. 17.5 - Prob. 21SECh. 17.5 - To print 8.5 5.5 note pads, a copy shop uses...Ch. 17.6 - Prob. 23SECh. 17.6 - Prob. 24SECh. 17.7 - Prob. 25SECh. 17.7 - Prob. 26SECh. 17.7 - Prob. 27SECh. 17.7 - Prob. 28SECh. 17.9 - Prob. 29SECh. 17.9 - Prob. 30SECh. 17.9 - Prob. 31SECh. 17 - Define (a) quality, (b) process, and (c)...Ch. 17 - Prob. 2CRCh. 17 - Prob. 3CRCh. 17 - Prob. 4CRCh. 17 - Prob. 5CRCh. 17 - Prob. 6CRCh. 17 - (a) Who was W. Edwards Deming and why is he...Ch. 17 - List three influential thinkers other than Deming...Ch. 17 - (a) Briefly explain each acronym: TQM, BPR, SQC,...Ch. 17 - (a) What is shown on the x chart? (b) Name three...Ch. 17 - Prob. 11CRCh. 17 - Prob. 12CRCh. 17 - Prob. 13CRCh. 17 - Prob. 14CRCh. 17 - Prob. 15CRCh. 17 - Briefly explain (a) the overadjustment problem,...Ch. 17 - Prob. 32CECh. 17 - Prob. 33CECh. 17 - Prob. 34CECh. 17 - Define three quality metrics that might be used to...Ch. 17 - Prob. 36CECh. 17 - Prob. 37CECh. 17 - Prob. 38CECh. 17 - Prob. 39CECh. 17 - Use your favorite Internet search engine to look...Ch. 17 - Make a fishbone chart (cause-and-effect diagram)...Ch. 17 - Make a fishbone chart (cause-and-effect diagram)...Ch. 17 - Make a fishbone chart (cause-and-effect diagram)...Ch. 17 - Prob. 44CECh. 17 - In painting an automobile, the thickness of the...Ch. 17 - Prob. 46CECh. 17 - Prob. 47CECh. 17 - Prob. 48CECh. 17 - In painting an automobile at the factory, the...Ch. 17 - Prob. 50CECh. 17 - Prob. 51CECh. 17 - Prob. 52CECh. 17 - Prob. 53CECh. 17 - A Nabisco Fig Newton has a process mean weight of...Ch. 17 - A new type of smoke detector battery is developed....Ch. 17 - Prob. 56CECh. 17 - Prob. 57CECh. 17 - Prob. 58CECh. 17 - Each gum drop in two bags of Sathers Gum Drops was...Ch. 17 - Prob. 60CECh. 17 - Prob. 61CECh. 17 - Prob. 62CECh. 17 - Prob. 63CECh. 17 - Refer to the bolt strength problem 17.47. Assuming...Ch. 17 - Refer to the paint problem 17.49 with =1.00 and ...
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