Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337793612
Author: PECK, Roxy.
Publisher: Cengage Learning,
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Chapter 16.1, Problem 6E
To determine
Interpret the 90% distribution free confidence
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An electrical engineer wishes to determine if, among two specific municipal buildings in town, Building “North” and Building “South”, whether the tensile strength of pipes (in psi) is not the same in each of these two buildings. A sample of pipes was chosen at random from both Building “North” and Building “South”, respectively.
Using α = 0.05, which of the following statistical test, or parameter, would be best for determining whether tensile strength of pipes (in psi) is not the same in each of these two buildings? (Assume all statistical assumptions met.)
a) Binomial Distribution
b) Population Difference in Means (i.e., Unpaired Data)
c) The Chi-Squared Test of Independence
d) Population Mean Difference (i.e., Paired Data)
The spike stature of the plants grown from the seeds of the porcine separates (Dactylis glomerata L) collected from the University campus and İbradı Eynif pasture are given below. In this plant, compare whether there is a difference between regions in terms of spike height.
Virgo Height (cm)
Data obtained from plants collected from university campus
5 6 8 7 8 6 5 5 4 6 6
Data obtained from plants collected from Eynif pasture
12 9 11 9 9 11 9 10 11 10
Note: Your results
interpretation according to two different possibilities
(Do it separately, assuming that it is 0.07 and 0.04).
Consider the following measurements of blood hemoglobin concentrations (in g/dL) from three human populations at different geographic locations:
population1 = [ 14.7 , 15.22, 15.28, 16.58, 15.10 ]
population2 = [ 15.66, 15.91, 14.41, 14.73, 15.09]
population3 = [ 17.12, 16.42, 16.43, 17.33]
What is the standard error of the difference between the means of population 1 and population 2, needed to calculate the Tukey-Kramer q-statistic?
What is the Tukey-Kramer q-statistic for populations 1 and 2? (Report the absolute value, if you get a negative number, multiply by -1)
Chapter 16 Solutions
Introduction To Statistics And Data Analysis
Ch. 16.1 - Urinary fluoride concentration (in parts per...Ch. 16.1 - Prob. 2ECh. 16.1 - Prob. 3ECh. 16.1 - A blood lead level of 70 mg/ml has been commonly...Ch. 16.1 - The effectiveness of antidepressants in treating...Ch. 16.1 - Prob. 6ECh. 16.1 - Prob. 7ECh. 16.2 - The effect of a restricted diet in the treatment...Ch. 16.2 - Peak force (N) on the hand was measured just prior...Ch. 16.2 - In an experiment to study the way in which...
Ch. 16.2 - Prob. 11ECh. 16.2 - Prob. 12ECh. 16.2 - Prob. 13ECh. 16.2 - Prob. 14ECh. 16.2 - Prob. 15ECh. 16.2 - Prob. 16ECh. 16.2 - Prob. 17ECh. 16.2 - The signed-rank test can be adapted for use in...Ch. 16.3 - Prob. 19ECh. 16.3 - Prob. 20ECh. 16.3 - The given data on phosphorus concentration in...Ch. 16.3 - Prob. 22ECh. 16.3 - Prob. 23ECh. 16.3 - The following data on amount of food consumed (g)...Ch. 16.3 - The article Effect of Storage Temperature on the...
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