Basic Technical Mathematics
11th Edition
ISBN: 9780134437705
Author: Washington
Publisher: PEARSON
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Chapter 22.2, Problem 1E
To determine
The median of the given data numbers.
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Reconsider the patient satisfaction data in Table 1. Fit a multiple regression model using both patient age and
severity as the regressors.
(a) Test for significance of regression.
(b) Test for the individual contribution of the two regressors. Are both regressor variables needed in the model?
(c) Has adding severity to the model improved the quality of the model fit? Explain your answer.
The output voltage of a power supply is assumed to be normally distributed. Sixteen observations taken at
random on voltage are as follows: 10.35, 9.30, 10.00, 9.96, 11.65, 12.00, 11.25, 9.58, 11.54, 9.95, 10.28, 8.37,
10.44, 9.25, 9.38, and 10.85.
(a) Test the hypothesis that the mean voltage equals 12 V against a two-sided alternative using a = 0.05.
(b) Construct a 95% two-sided confidence interval on μ.
(c) Test the hypothesis that σ² = 11 using α = 0.05.
(d) Construct a 95% two-sided confidence interval on σ.
(e) Construct a 95% upper confidence interval on σ.
(f) Does the assumption of normality seem reasonable for the output voltage?
Analyze the residuals from the regression model on the patient satisfaction data from Exercise 3. Comment on
the adequacy of the regression model.
Chapter 22 Solutions
Basic Technical Mathematics
Ch. 22.1 - In Example 3, change the class limits to 1.0, 2.0,...Ch. 22.1 - Prob. 2ECh. 22.1 - In Exercises 3-6, indicate whether the variable is...Ch. 22.1 - In Exercises 3-6, indicate whether the variable is...Ch. 22.1 - In Exercises 3-6, indicate whether the variable is...Ch. 22.1 - In Exercises 3-6, indicate whether the variable is...Ch. 22.1 - In Exercises 7-10, use the following data. In a...Ch. 22.1 - In Exercises 7-10, use the following data. In a...Ch. 22.1 - In Exercises 7–10, use the following data. In a...Ch. 22.1 - In Exercises 7–10, use the following data. In a...
Ch. 22.1 - In Exercises 11–14, use the following data. In a...Ch. 22.1 - In Exercises 11–14, use the following data. In a...Ch. 22.1 - In Exercises 11–14, use the following data. In a...Ch. 22.1 - In Exercises 11–14, use the following data. In a...Ch. 22.1 - In Exercises 15–18, use the following data. In...Ch. 22.1 - In Exercises 15–18, use the following data. In...Ch. 22.1 - In Exercises 15-18, use the following data. In...Ch. 22.1 - In Exercises 15-18, use the following data. In...Ch. 22.1 - In Exercises 19-24, use the following data. In a...Ch. 22.1 - In Exercises 19-24, use the following data. In a...Ch. 22.1 - In Exercises 19-24, use the following data. In a...Ch. 22.1 - In Exercises 19-24, use the following data. In a...Ch. 22.1 - In Exercises 19-24, use the following data. In a...Ch. 22.1 - In Exercises 19-24, use the following data. In a...Ch. 22.1 - In Exercises 25 and 26, use the following data....Ch. 22.1 - In Exercises 25 and 26, use the following data....Ch. 22.1 - In Exercises 27 and 28, use the following data....Ch. 22.1 - In Exercises 27 and 28, use the following data....Ch. 22.1 - The data in the table show the global mean...Ch. 22.1 - The data in the following table show the...Ch. 22.2 - For the following numbers, find the indicated...Ch. 22.2 - For the following numbers, find the indicated...Ch. 22.2 - For the following numbers, find the indicated...Ch. 22.2 - Prob. 1ECh. 22.2 - Prob. 2ECh. 22.2 - Prob. 3ECh. 22.2 - In Exercises 1–4, delete the 5 from the data...Ch. 22.2 - In Exercises 5–16, use the following sets of...Ch. 22.2 - In Exercises 5–16, use the following sets of...Ch. 22.2 - In Exercises 5–16, use the following sets of...Ch. 22.2 - In Exercises 5–16, use the following sets of...Ch. 22.2 - In Exercises 5–16, use the following sets of...Ch. 22.2 - In Exercises 5–16, use the following sets of...Ch. 22.2 - Prob. 11ECh. 22.2 - Prob. 12ECh. 22.2 - Prob. 13ECh. 22.2 - Prob. 14ECh. 22.2 - Prob. 15ECh. 22.2 - Prob. 16ECh. 22.2 - In Exercises 17-34, the required data are those in...Ch. 22.2 - In Exercises 17-34, the required data are those in...Ch. 22.2 - In Exercises 17–34, the required data are those in...Ch. 22.2 - In Exercises 17–34, the required data are those in...Ch. 22.2 - Prob. 21ECh. 22.2 - Prob. 22ECh. 22.2 - Prob. 23ECh. 22.2 - Prob. 24ECh. 22.2 - Prob. 25ECh. 22.2 - Prob. 26ECh. 22.2 - In Exercises 17–34, the required data are those in...Ch. 22.2 - Prob. 28ECh. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - In Exercises 29–42, find the indicated measure of...Ch. 22.2 - Add $100 to each of the salaries in Exercise 29....Ch. 22.2 - Multiply each of the salaries in Exercise 29 by 2....Ch. 22.2 - Change the final salary in Exercise 29 to $4000,...Ch. 22.2 - Find the median and mode of the salaries indicated...Ch. 22.3 - Find the standard deviation of the first eight...Ch. 22.3 - Prob. 1ECh. 22.3 - Prob. 2ECh. 22.3 - Prob. 3ECh. 22.3 - Prob. 4ECh. 22.3 - Prob. 5ECh. 22.3 - Prob. 6ECh. 22.3 - Prob. 7ECh. 22.3 - In Exercises 3–14, use the following sets of...Ch. 22.3 - Prob. 9ECh. 22.3 - Prob. 10ECh. 22.3 - Prob. 11ECh. 22.3 - Prob. 12ECh. 22.3 - Prob. 13ECh. 22.3 - Prob. 14ECh. 22.3 - Prob. 15ECh. 22.3 - Prob. 16ECh. 22.3 - Prob. 17ECh. 22.3 - Prob. 18ECh. 22.3 - Prob. 19ECh. 22.3 - Prob. 20ECh. 22.3 - Prob. 21ECh. 22.3 - Prob. 22ECh. 22.4 - Prob. 1PECh. 22.4 - Prob. 2PECh. 22.4 - Prob. 1ECh. 22.4 - In Exercises 1–4, make the given changes in the...Ch. 22.4 - Prob. 3ECh. 22.4 - Prob. 4ECh. 22.4 - Prob. 5ECh. 22.4 - Prob. 6ECh. 22.4 - Prob. 7ECh. 22.4 - In Exercises 5–8, use the following information....Ch. 22.4 -
In Exercises 9–12, use the following information....Ch. 22.4 -
In Exercises 9–12, use the following information....Ch. 22.4 -
In Exercises 9–12, use the following information....Ch. 22.4 -
In Exercises 9–12, use the following information....Ch. 22.4 -
In Exercises 13–16, use the following data. It...Ch. 22.4 -
In Exercises 13–16, use the following data. It...Ch. 22.4 -
In Exercises 13–16, use the following data. It...Ch. 22.4 -
In Exercises 13–16, use the following data. It...Ch. 22.4 -
In Exercises 17–24, use the following data. The...Ch. 22.4 - Prob. 18ECh. 22.4 - Prob. 19ECh. 22.4 - Prob. 20ECh. 22.4 -
In Exercises 17–24, use the following data. The...Ch. 22.4 - Prob. 22ECh. 22.4 - Prob. 23ECh. 22.4 - Prob. 24ECh. 22.4 -
In Exercises 25–30, solve the given problems,
25....Ch. 22.4 - Prob. 26ECh. 22.4 - Prob. 27ECh. 22.4 - Prob. 28ECh. 22.4 - Prob. 29ECh. 22.4 - Prob. 30ECh. 22.5 - Is either the mean or range affected if subgroup...Ch. 22.5 - Prob. 2PECh. 22.5 - Prob. 1ECh. 22.5 - Prob. 2ECh. 22.5 - Prob. 3ECh. 22.5 - Prob. 4ECh. 22.5 - Prob. 5ECh. 22.5 - Prob. 6ECh. 22.5 - Prob. 7ECh. 22.5 - Prob. 8ECh. 22.5 - In Exercise 9–12, use the following data.
Five AC...Ch. 22.5 - In Exercise 9–12, use the following data.
Five AC...Ch. 22.5 - Prob. 11ECh. 22.5 - Prob. 12ECh. 22.5 - Prob. 13ECh. 22.5 - Prob. 14ECh. 22.5 - Prob. 15ECh. 22.5 - In Exercises 13–16, use the following...Ch. 22.5 - In Exercises 17 and 18, use the following data.
A...Ch. 22.5 - Prob. 18ECh. 22.5 - Prob. 19ECh. 22.5 - Prob. 20ECh. 22.6 - In Exercises 1–14, find the equation of the...Ch. 22.6 - EXERCISE 22.6
In Exercises 1–14, find the equation...Ch. 22.6 - EXERCISE 22.6
In Exercises 1–14, find the equation...Ch. 22.6 - Prob. 4ECh. 22.6 - Prob. 5ECh. 22.6 - Prob. 6ECh. 22.6 - Prob. 7ECh. 22.6 - Prob. 8ECh. 22.6 - Prob. 9ECh. 22.6 - Prob. 10ECh. 22.6 - Prob. 11ECh. 22.6 - Prob. 12ECh. 22.6 - Prob. 13ECh. 22.6 - Prob. 14ECh. 22.6 - Prob. 15ECh. 22.6 - Prob. 16ECh. 22.6 - Prob. 17ECh. 22.6 - Prob. 18ECh. 22.7 - Prob. 1ECh. 22.7 - Prob. 2ECh. 22.7 - Prob. 3ECh. 22.7 - Prob. 4ECh. 22.7 - Prob. 5ECh. 22.7 - Prob. 6ECh. 22.7 - Prob. 7ECh. 22.7 - Prob. 8ECh. 22.7 - Prob. 9ECh. 22.7 - Prob. 10ECh. 22.7 - Prob. 11ECh. 22.7 - Prob. 12ECh. 22 - Prob. 1RECh. 22 - Determine each of the following as being either...Ch. 22 - Determine each of the following as being either...Ch. 22 - Prob. 4RECh. 22 - Prob. 5RECh. 22 - Prob. 6RECh. 22 - Prob. 7RECh. 22 - Prob. 8RECh. 22 - Prob. 9RECh. 22 - Prob. 10RECh. 22 - Prob. 11RECh. 22 - Prob. 12RECh. 22 - Prob. 13RECh. 22 - Prob. 14RECh. 22 - Prob. 15RECh. 22 - Prob. 16RECh. 22 - Prob. 17RECh. 22 - Prob. 18RECh. 22 - Prob. 19RECh. 22 - Prob. 20RECh. 22 - Prob. 21RECh. 22 - Prob. 22RECh. 22 - Prob. 23RECh. 22 - Prob. 24RECh. 22 - Prob. 25RECh. 22 - Prob. 26RECh. 22 - Prob. 27RECh. 22 - Prob. 28RECh. 22 - Prob. 29RECh. 22 - Prob. 30RECh. 22 - Prob. 31RECh. 22 - Prob. 32RECh. 22 - Prob. 33RECh. 22 - Prob. 34RECh. 22 - Prob. 35RECh. 22 - Prob. 36RECh. 22 - Prob. 37RECh. 22 - Prob. 38RECh. 22 - Prob. 39RECh. 22 - Prob. 40RECh. 22 - Prob. 41RECh. 22 - Prob. 42RECh. 22 - Prob. 43RECh. 22 - Prob. 44RECh. 22 - Prob. 45RECh. 22 - Prob. 46RECh. 22 - Prob. 47RECh. 22 - Prob. 48RECh. 22 - Prob. 49RECh. 22 - Prob. 50RECh. 22 - Prob. 51RECh. 22 - Prob. 52RECh. 22 - Prob. 53RECh. 22 - Prob. 54RECh. 22 - Prob. 55RECh. 22 - Prob. 56RECh. 22 - Prob. 57RECh. 22 - Prob. 58RECh. 22 - Prob. 59RECh. 22 - Prob. 60RECh. 22 - Prob. 61RECh. 22 - Prob. 1PTCh. 22 - Prob. 2PTCh. 22 - Prob. 3PTCh. 22 - Prob. 4PTCh. 22 - Prob. 5PTCh. 22 - Prob. 6PTCh. 22 - Prob. 7PTCh. 22 - Prob. 8PTCh. 22 - Prob. 9PTCh. 22 - In Problems 9–11, use the following information....Ch. 22 - Prob. 11PTCh. 22 - Prob. 12PTCh. 22 - Prob. 13PTCh. 22 - Prob. 14PT
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