Business Analytics Exam 1
Compute the coefficient of variation for the following sample data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37
21.36%
Compute the median of the following data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37
31
What is the mode of the data set given below? 35, 47, 65, 47, 22
47
A sample of 13 adult males' heights are listed below. Find the range of the data. 70, 72, 71, 70, 69, 73, 69, 68, 70, 71, 67, 71, 74
7
As mentioned in Lecture 1 video, which of the following is not included in CIA triad - the framework we can use to think about how best to protect data security?
Accountability
Why Dr. Li said Orange and Blue are good colors to choose for data virtualization?
Good color contrast while considering the color-blind audience
__________ is an open-source programming environment that supports big data processing through distributed storage and distributed processing on clusters of computers.
Hadoop
__________ is the most critical step of the decision-making process.
Identifying and defining the problem
To summarize and analyze data with both a crosstabulation and charting, Excel typically pairs
PivotCharts with PivotTables.
Which one of the following statements is not true concerning PivotTables in Excel?
PivotTables can be built using data arrayed in rows.
Bill, the manager of Columbus Café, schedules twice the number of waiters and cooks on holiday. Which of the following is the approach Bill used in his decision-making?
Rules of thumb
A data visualization tool that updates in real time and gives multiple outputs is called
a data dashboard
A chart that is recommended as an alternative to a pie chart is a
bar chart
A better understanding of consumer behavior through analytics directly leads to
better marketing strategies
The correlation coefficient will always take values
between -1 and 1
The financial dashboard on the second floor of CCT building is a type of _________ analytics.
descriptive
Tactical decisions are concerned with
how the organization should achieve the goals and objectives set by its strategy.
Consider the clustered bar chart of the dashboard developed to monitor the performance of a call center. This chart allows the IT manager to
identify the frequency of a particular type of problem by location
Deleting the grid lines in a table and the horizontal lines in a chart
increases the data-ink ratio
The letter grades (A, B, C, D, F) of business analysis students are recorded by a professor. This variable's classification
is categorical data
Data-ink is the ink used in a table or chart that
is necessary to convey the meaning of the data to the audience
A disadvantage of stacked-column charts and stacked-bar charts is that
it can be difficult to perceive small differences in areas
In a business, the values indicating the business's current operating characteristics, such as its financial position, the inventory on hand, and customer service metrics, are typically known as
key performance indicators (KPIs)
A time series plot is also known as a
line chart
A set of values corresponding to a set of variables is defined as a(n)
observation
Dr. Bill plans to open a donuts store nearby CSU, he collected the data from the students about their favorite flavors of donuts is an example of a(n)
observational study
Any data value with a z-score less than -3 or greater than +3 is considered to be a(n)
outlier
Advanced analytics generally refers to
predictive and prescriptive analytics
Which of the following gives the proportion of items in each bin?
relative frequency
Data-driven decision making tends to decrease a firm's
risk
MISM 3116 summer class students will be chosen to represent Turner College to attend the campus-wide modeling competition. Of the students in Turner College, MISM 3116 students are _______________________
sample
Williams & Lee Inc. is an Internet-based retail seller of hiking boots and mountaineering gear. The company decides to open retail stores across the major cities of Georgia to help complement its Internet-based strategy. This activity would be categorized as a(n)
strategic decision
The decisions concerning an organization's goals and future plans are called
strategic decisions
__________ merges maps and statistics to present data collected over different geographies.
the geographic information system
Simulation optimization helps
to find good decisions in highly complex and highly uncertain settings.
A _____________ is a line that provides an approximation of the relationship between the variables.
trendline
A quantity of interest that can take on different values is known as a(n)
variable
