Basic Business Statistics Student Value Edition Plus NEW MyLab Statistics with Pearson eText -- Access Card Package (13th Edition)
13th Edition
ISBN: 9780133873641
Author: Mark L. Berenson, David M. Levine, Kathryn A. Szabat
Publisher: PEARSON
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Chapter 11, Problem 54PS
a.
To determine
Test whether there is significant difference in the variation of the breaking strengths for the three air-jet pressures.
b.
To determine
Determine whether there is significant difference in the mean breaking strength for the three air-jet pressures.
c.
To determine
Use the Tukey procedure to determine which air-jet pressure significantly differs with respect to mean breaking strength.
d.
To determine
Explain the conclusion that can be drawn by operations manager.
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Students have asked these similar questions
In a population, n=200, X=50, and q=0.75. Determine the test statistic z.
Nocaf Drinks, Inc., a producer of decaffeinated coffee, bottles Nocaf. Each bottle should have a net weight of 4 oz. The machine that fills the bottles with coffee is new, and the operations manager wants to make
sure that it is properly adjusted. Bonnie Crutcher, The Operations Manager, randomly selects and weighs. n = 8 bottles and rounds the average and range in ounces for each sample. The data for several
samples is given in the following table. Note that every sample consist of 8 bottles.
1. Find Grand X-Bar
2. Find R-Bar
3. Using the Sample Chart Locate Sigma
4. Using the UCL Formula insert the values into the formula
SAMPLE SAMPLE RANGE SAMPLE AVERAGE
A
B
C
D
E
E
F
P
G
H
UCL=x+A₂ (R)
LCL=X-A₂ (R)
.41
55
44
48
56
.56
.62
54
.44
A2 = .373
UCL in Inches =
4.00
4.16
3.99
4.00
4.17
3.93
3.98
4.01
Round Your Response Two Decimal Places
UCL=D4(R)
LCL=D3(R)
Item 9
At a research facility that designs rocket engines, researchers know that some engines fail to ignite as a result of fuel system error. From a random sample of 40 engines of one design, 14 failed to ignite as a result of fuel system error. From a random sample of 30 engines of a second design, 9 failed to ignite as a result of fuel system error. The researchers want to estimate the difference in the proportion of engine failures for the two designs. Which of the following is the most appropriate method to create the estimate?
A one-sample z-interval for a sample proportion
A
A one-sample z-interval for a population proportion
B
A two-sample z-interval for a population proportion
C
A two-sample z-interval for a difference in sample proportions
D
A two-sample z-interval for a difference in population proportions
Chapter 11 Solutions
Basic Business Statistics Student Value Edition Plus NEW MyLab Statistics with Pearson eText -- Access Card Package (13th Edition)
Ch. 11 - An experiment has a single factor with five groups...Ch. 11 - You are working with the same experiment as in...Ch. 11 - You are working with the same experiment as in...Ch. 11 - Consider an experiment with three groups, with...Ch. 11 - Prob. 5PSCh. 11 - You are working the same experiment as in Problem...Ch. 11 - Prob. 7PSCh. 11 - The more costly and time-consuming it is to export...Ch. 11 - A hospital conducted a study of the waiting time...Ch. 11 - A manufacturer of pens has hired an advertising...
Ch. 11 - QSR has been reporting on the largest quick-serve...Ch. 11 - Prob. 12PSCh. 11 - A pet food company has a business objective of...Ch. 11 - A sporting goods manufacturing company wanted to...Ch. 11 - Prob. 15PSCh. 11 - Prob. 16PSCh. 11 - Prob. 17PSCh. 11 - Prob. 18PSCh. 11 - Prob. 19PSCh. 11 - Prob. 20PSCh. 11 - Prob. 21PSCh. 11 - Prob. 22PSCh. 11 - Prob. 23PSCh. 11 - How do the rating for TV, phone, and Internet...Ch. 11 - Prob. 25PSCh. 11 - How different are the rates of return of money...Ch. 11 - Prob. 27PSCh. 11 - The data in Concrsts2 represent the compressive...Ch. 11 - Prob. 29PSCh. 11 - Prob. 30PSCh. 11 - Prob. 31PSCh. 11 - Prob. 32PSCh. 11 - Prob. 33PSCh. 11 - Prob. 34PSCh. 11 - Prob. 35PSCh. 11 - Prob. 36PSCh. 11 - Prob. 37PSCh. 11 - Prob. 38PSCh. 11 - A metallurgy company wanted to investigate the...Ch. 11 - An experiment was conducted to try to resolve a...Ch. 11 - Prob. 41PSCh. 11 - Prob. 42PSCh. 11 - Prob. 43PSCh. 11 - Prob. 44PSCh. 11 - Prob. 45PSCh. 11 - When and how should you use multiple comparison...Ch. 11 - What is the difference between the randomized...Ch. 11 - Prob. 48PSCh. 11 - Prob. 49PSCh. 11 - Prob. 50PSCh. 11 - Prob. 51PSCh. 11 - Prob. 52PSCh. 11 - Medical wires are used in the manufacture of...Ch. 11 - Prob. 54PSCh. 11 - Suppose that, when setting up the experiment in...Ch. 11 - Prob. 56PSCh. 11 - Prob. 57PSCh. 11 - Prob. 58PSCh. 11 - Prob. 59PSCh. 11 - Prob. 60PSCh. 11 - Prob. 61PS
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