Cisb 241 Exam 1 Questions With 100%
Pass
/.Statistics is a discipline that involves tools and techniques used to describe data and
draw conclusions. - Answer-True
/.Descriptive statistics allow a decision maker to reach a conclusion about a populations
based on a subset from the population. - Answer-False
/.When a marketing manager surveys a few of the customers for the purpose of drawing
a conclusion about the entire list of customers, she is applying: - Answer-numerical
measures.
/.When the park ranger at Yellowstone National Park reports the average length of time
that visitors spend in the park, he is using: - Answer-numerical measures.
/.The Biltmore Hotel manager is getting ready to make a presentation that she hopes
will justify adding additional staff. As part of the presentation, she has constructed
charts and graphs. The general type of statistical analysis she is using is: - Answer-
descriptive statistics.
/.Estimation and hypothesis testing are categories of: - Answer-inferential statistics.
/.Based on a survey of 400 students in a university in which 20 percent indicated that
they were business majors. The university student newspaper reported that "20 percent
of all the students at the university are business majors." This report is an example of -
Answer-
/.When the United States conducts a census that counts all people in the country this is
an example of using a sample. - Answer-False
/.A value computed from a population is called: - Answer-a parameter.
/.At the end of the school term, students are asked to rate the course and instructor by
indicating on a scale of 1-5 how well they liked the course. The data generated from this
question are examples of ordinal data. - Answer-True
/.When a survey uses the responses strongly disagree, disagree, neutral, agree,
strongly agree, this is an example of: - Answer-ordinal data.
/.General Electric Corporation tracks employee turnover annually. It currently has a data
set that contains turnover for the past 20 years. What type of data does it have? -
Answer-Time-series data
, /.A college database includes the number of people who are enrolled in each class the
college offers. This is an example of: - Answer-
/.When data are organized into levels, the highest data level is: - Answer-ratio level
data.
/.The human resources department at a major high tech company recently conducted
an employee satisfaction survey of 100 of its 3,000 employees. Data were collected on
such variables as age, gender, marital status, current salary, level of overall satisfaction
on a scale from 1 to 5, number of years with the company, and job title. Which of the
variables would be classified as nominal level data? - Answer-Gender, marital status,
and job title
/.The use of charts and graphs is an example of: - Answer-descriptive statistics.
/.A histogram is most commonly used to analyze which of the following? - Answer-
Quantitative data
/.A histogram is used to display which of the following characteristics for a quantitative
variable? - Answer-The shape of the distribution, The approximate center of the data, &
The spread in the data
/.A common rule of thumb for determining how many classes to use when developing a
frequency distribution with classes is: - Answer-between 5 and 20 classes.
/.A study of 4000 Dell PC customers listed the age of the customer among other
variables. The youngest customer was 14 years old and the oldest customer was 84
years old. If analysts for the company wish to develop a frequency distribution with 7
classes, the smallest value that the class width can be is 10 years. - Answer-True
/.When choosing class boundaries for a frequency distribution, classes such as 60-70,
70-80, 80-90 would be acceptable. - Answer-False
/.Which of the following is not considered desirable when constructing a frequency
distribution for continuous data?
Class Frequency
146-185 4
186-225 16
226-265 33
266-305 26
306-345 21
346-385 9
386-425 1 - Answer-Open-ended classes
Pass
/.Statistics is a discipline that involves tools and techniques used to describe data and
draw conclusions. - Answer-True
/.Descriptive statistics allow a decision maker to reach a conclusion about a populations
based on a subset from the population. - Answer-False
/.When a marketing manager surveys a few of the customers for the purpose of drawing
a conclusion about the entire list of customers, she is applying: - Answer-numerical
measures.
/.When the park ranger at Yellowstone National Park reports the average length of time
that visitors spend in the park, he is using: - Answer-numerical measures.
/.The Biltmore Hotel manager is getting ready to make a presentation that she hopes
will justify adding additional staff. As part of the presentation, she has constructed
charts and graphs. The general type of statistical analysis she is using is: - Answer-
descriptive statistics.
/.Estimation and hypothesis testing are categories of: - Answer-inferential statistics.
/.Based on a survey of 400 students in a university in which 20 percent indicated that
they were business majors. The university student newspaper reported that "20 percent
of all the students at the university are business majors." This report is an example of -
Answer-
/.When the United States conducts a census that counts all people in the country this is
an example of using a sample. - Answer-False
/.A value computed from a population is called: - Answer-a parameter.
/.At the end of the school term, students are asked to rate the course and instructor by
indicating on a scale of 1-5 how well they liked the course. The data generated from this
question are examples of ordinal data. - Answer-True
/.When a survey uses the responses strongly disagree, disagree, neutral, agree,
strongly agree, this is an example of: - Answer-ordinal data.
/.General Electric Corporation tracks employee turnover annually. It currently has a data
set that contains turnover for the past 20 years. What type of data does it have? -
Answer-Time-series data
, /.A college database includes the number of people who are enrolled in each class the
college offers. This is an example of: - Answer-
/.When data are organized into levels, the highest data level is: - Answer-ratio level
data.
/.The human resources department at a major high tech company recently conducted
an employee satisfaction survey of 100 of its 3,000 employees. Data were collected on
such variables as age, gender, marital status, current salary, level of overall satisfaction
on a scale from 1 to 5, number of years with the company, and job title. Which of the
variables would be classified as nominal level data? - Answer-Gender, marital status,
and job title
/.The use of charts and graphs is an example of: - Answer-descriptive statistics.
/.A histogram is most commonly used to analyze which of the following? - Answer-
Quantitative data
/.A histogram is used to display which of the following characteristics for a quantitative
variable? - Answer-The shape of the distribution, The approximate center of the data, &
The spread in the data
/.A common rule of thumb for determining how many classes to use when developing a
frequency distribution with classes is: - Answer-between 5 and 20 classes.
/.A study of 4000 Dell PC customers listed the age of the customer among other
variables. The youngest customer was 14 years old and the oldest customer was 84
years old. If analysts for the company wish to develop a frequency distribution with 7
classes, the smallest value that the class width can be is 10 years. - Answer-True
/.When choosing class boundaries for a frequency distribution, classes such as 60-70,
70-80, 80-90 would be acceptable. - Answer-False
/.Which of the following is not considered desirable when constructing a frequency
distribution for continuous data?
Class Frequency
146-185 4
186-225 16
226-265 33
266-305 26
306-345 21
346-385 9
386-425 1 - Answer-Open-ended classes
