Exam 1: Data and Statistics
Exam 1: Data and Statistics98 Questions
Exam 2: Descriptive Statistics: Tabular and Graphical Displays62 Questions
Exam 3: Descriptive Statistics: Numerical Measures173 Questions
Exam 4: Introduction to Probability138 Questions
Exam 5: Discrete Probability Distributions123 Questions
Exam 6: Continuous Probability Distributions174 Questions
Exam 7: Sampling and Sampling Distributions133 Questions
Exam 8: Interval Estimation137 Questions
Exam 9: Hypothesis Tests148 Questions
Exam 10: Inference About Means and Proportions With Two Populations121 Questions
Exam 11: Inferences About Population Variances90 Questions
Exam 12: Comparing Multiple Proportions, Test of Independence and Goodness of Fit90 Questions
Exam 13: Experimental Design and Analysis of Variance115 Questions
Exam 14: Simple Linear Regression146 Questions
Exam 15: Multiple Regression115 Questions
Exam 16: Regression Analysis: Model Building76 Questions
Exam 17: Time Series Analysis and Forecasting68 Questions
Exam 18: Nonparametric Methods81 Questions
Exam 19: Statistical Methods for Quality Control29 Questions
Exam 20: Index Numbers52 Questions
Exam 21: Decision Analysis on Website65 Questions
Exam 22: Sample Survey on Website63 Questions
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Exhibit 1-1
In a recent study based upon an inspection of 200 homes in Daisy City, 80 were found to violate one or more city codes.
-Refer to Exhibit 1-1. The Daisy City study described above is an example of the use of a
(Multiple Choice)
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The height of a building, measured in feet, is an example of
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The scale of measurement that is used to rank order the observation for a variable is called the
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The owner of a factory regularly requests a graphical summary of all employees' salaries. The graphical summary of salaries is an example of
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The following national weather report gives the temperatures and weather conditions on the previous day in cities across the nation.
a.How many elements are in this data set?
b.How many variables are in this data set?
c.How many observations are there in the above data set?
d.Which variables are categorical and which are quantitative?
e.What measurement scale is used for temperature and weather conditions?

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In a post office, the mailboxes are numbered from 1 to 4,500. These numbers represent
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Which of the following can be classified as quantitative data?
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Exhibit 1-3
Part of the data bank of a corporation is shown below.
-Refer to Exhibit 1-3. Employee Number is an example of ________ data.

(Multiple Choice)
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The following table shows the age distribution of a sample of 180 students at a local college.AGE DISTRIBUTION OF
180 STUDENTS AT A LOCAL COLLEGE
a.Of the students in the sample, what percentage is younger than 20 years of age?
b.What percentage is at least 30 years of age?
c.Based on this sample, what percentage of the students at the college do you estimate to be younger than 25 years of age?

(Short Answer)
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Exhibit 1-3
Part of the data bank of a corporation is shown below.
-Refer to Exhibit 1-3. Yearly Salary is an example of ________ data.

(Multiple Choice)
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Exhibit 1-4
In many universities, students evaluate their professors by means of answering a questionnaire. Assume a questionnaire is distributed to a class of 45 students. Students are asked to answer the following:
1. Sex
2. Race (African descent, Caucasian, Other)
3. Age
4. Number of hours completed
5. Grade point average
6. My instructor is a very effective teacher
-Refer to Exhibit 4-1. How many observations are in this data set?
(Multiple Choice)
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In a data set, the number of elements will always be the same as the number of
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On a street, the houses are numbered from 300 to 450. The house numbers are examples of
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The Department of Transportation of a city has noted that on the average there are 17 accidents per day. The average number of accidents is an example of
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