Student Solutions Manual for Devore's Probability and Statistics for Engineering and the Sciences, 9th
9th Edition
ISBN: 9798214004020
Author: Jay L. Devore
Publisher: Cengage Learning US
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Chapter 15.4, Problem 24E
To determine
Test the equality of the four dietary regimens using Kruskal-Wallis test.
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Students have asked these similar questions
The removal of ammoniacal nitrogen is an important aspect of treatment of leachate at
landfill sites. The rate of removal (in percent per day) is recorded for several days for each
of several treatment methods. The results are presented in the following table. (Based on the
article "Removal of Ammoniacal Nitrogen from Landfill Leachate by Irrigation onto
Vegetated Treatment Planes," S. Tyrrel, P. Leeds-Harrison, and K. Harrison, Water
Research, 2002:291–299.)
Treatment
Rate of Removal
5.21
4.65
5.59
2.69
7.57
5.16
6.24
5.94
6.41
6.85
9.18
4.94
4.04
3.29
4.52
3.75
Construct an ANOVA table. You may give a range for the P-value.
Can you conclude that the treatment methods differ in their rates of removal?
a.
b.
ABCAE
Riboflavin (Vitamin B2) is determined in a cereal sample by measuring its fluorescence intensity(형광세기) in 5% acetic acid solution. A calibration curve was prepared by measuring the fluorescence intensities of a series of standards of increasing concentrations. The following data were obtained.
Riboflavin (μg/mL)
0.000
0.100
0.200
0.400
0.800
Unknown sample
Fluorescence intensity
0.0
5.8
12.2
22.3
43.3
15.4
(a) Use the method of least squares to obtain the best straight line through these five points (n=5).
(b) Make a graph showing the experimental data and the calculated straight line.
(c) An unknown sample gave an observed fluorescence intensity of 15.4.
Calculate the concentration of Riboflavin (Vitamin B2) in the unknown sample (μg/mL).
(d) Calculate the coefficient of determination (R2).
A sample of 10 diesel trucks were run both hot and cold to estimate the difference in fuel
economy. The results, in mpg. are presented in the following table. (From "In-use
Emissions from Heavy-Duty Diesel Vehicles," J. Yanowitz, Ph.D. thesis, Colorado School
of Mines, 2001.)
Truck
Hot
Cold
4.56
4.26
2
4.46
4.08
3
6.49
5.83
5.37
4.96
5
6.25
5.87
6
5.90
5.32
4.12
3.92
8
3.85
3.69
4.15
3.74
10
4.69
4.19
Find a 98% confidence interval for the difference in mean fuel mileage between hot and
cold engines.
Chapter 15 Solutions
Student Solutions Manual for Devore's Probability and Statistics for Engineering and the Sciences, 9th
Ch. 15.1 - Give as much information as you can about the...Ch. 15.1 - Here again is the data on expense ratio (%) for a...Ch. 15.1 - The accompanying data is a subset of the data...Ch. 15.1 - A random sample of 15 automobile mechanics...Ch. 15.1 - Both a gravimetric and a spectrophotometric method...Ch. 15.1 - Reconsider the situation described in Exercise 39...Ch. 15.1 - Use the large-sample version of the Wilcoxon test...Ch. 15.1 - Reconsider the port alcohol content data from...Ch. 15.1 - Prob. 9ECh. 15.2 - Prob. 10E
Ch. 15.2 - Prob. 11ECh. 15.2 - The article A Study of Wood Stove Particulate...Ch. 15.2 - The urinary fluoride concentration (parts per...Ch. 15.2 - Prob. 14ECh. 15.2 - The article Measuring the Exposure of Infants to...Ch. 15.2 - Prob. 16ECh. 15.3 - Prob. 17ECh. 15.3 - Compute the 99% signed-rank interval for true...Ch. 15.3 - Prob. 19ECh. 15.3 - Prob. 20ECh. 15.3 - Prob. 21ECh. 15.3 - Compute a 99% CI for 1 2 using the data in...Ch. 15.4 - The accompanying data refers to concentration of...Ch. 15.4 - Prob. 24ECh. 15.4 - Prob. 25ECh. 15.4 - Prob. 26ECh. 15.4 - In an experiment to study the way in which...Ch. 15 - The article Effects of a Rice-Rich Versus...Ch. 15 - Prob. 29SECh. 15 - The given data on phosphorus concentration in...Ch. 15 - Prob. 31SECh. 15 - Prob. 32SECh. 15 - The sign test is a very simple procedure for...Ch. 15 - Prob. 34SECh. 15 - Prob. 35SECh. 15 - Prob. 36SE
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