Statistics for Business & Economics 14th Edition by David R. Anderson test bank
20 - 24
2
25 - 29
48
30 - 34
60
35 - 39
80
40 - 44
10
a.
What percentage of employees have yearly incomes of $35,000 or more?
b.
Does the figure computed in part a exemplify statistical inference? If no, what kind of statistical information does it represent?
c.
Based on this sample, the president of the company said that "45% of all our employees' yearly incomes are $35,000 or more." What kind of statistical information does the president's statement represent?
d.
With the statement made in Part c, can we be assured that more than 45% of all employees' yearly incomes are at least $35,000? Explain.
e.
What percentage of employees of the sample have yearly incomes of $29,000 or less?
f.
How many variables are presented in the above data set?
g.
How many observation results are represented in the above data set?
ANSWER:
a.
45%
b.
No, it is descriptive statistics.
c.
statistical inference
d.
No, this is simply an inference and approximation based on the sample information.
e.
25%
f.
2
g.
200
POINTS:
1
DIFFICULTY:
Challenging
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
LEARNING OBJECTIVES:
BSST.ASWC.20.01.02 - Data
BSST.ASWC.20.01.04 - Descriptive Statistics
BSST.ASWC.20.01.05 - Statistical Inference
NATIONAL STANDARDS:
United States - BUSPROG: Analytic
STATE STANDARDS:
United States - AK - DISC: Descriptive Statistics
United States - AK - DISC: IMA: Reporting
United States - AK - DISC: Statistical Inference
KEYWORDS:
Bloom's: Apply | Bloom's: Understand
DATE CREATED:
9/26/2018 11:22 AM
DATE MODIFIED:
1/18/2019 3:47 PM
89. A recent issue of a national magazine reported that in a national public opinion survey conducted among 2,000 individuals, 56% were in favor of gun control, 40% opposed gun control, and 4% had no opinion on the subject.
a.
What is the sample in this survey?
b.
Based on the sample, what percentage of the population would you think is in favor of gun control?
c.
Based on the sample, what percentage of the population would you think have no opinion on the subject?
ANSWER:
a.
The 2000 individuals who were approached
b.
56%
c.
4%
POINTS:
1
DIFFICULTY:
Easy
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
LEARNING OBJECTIVES:
BSST.ASWC.20.01.05 - Statistical Inference
NATIONAL STANDARDS:
United States - BUSPROG: Analytic
STATE STANDARDS:
United States - AK - DISC: Statistical Inference
KEYWORDS:
Bloom's: Understand
DATE CREATED:
9/26/2018 11:22 AM
DATE MODIFIED:
1/18/2019 3:47 PM
90. The following table shows the starting salaries of a sample of recent business graduates.
Income (In $1,000s)
Number of Graduates
15 - 19
40
20 - 24
60
25 - 29
80
30 - 34
18
35 - 39
2
a.
What percentage of graduates in the sample had starting salaries of at least $25,000?
b.
Of the graduates in the sample, what percentage had starting salaries of less than $20,000?
c.
Based on this sample, what percentage of all business graduates do you estimate to have starting salaries of at least $30,000?
ANSWER:
a.
50%
b.
20%
c.
10%
POINTS:
1
DIFFICULTY:
Moderate
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
LEARNING OBJECTIVES:
BSST.ASWC.20.01.05 - Statistical Inference