QUESTION $1$

$1.$ Data that can be stored and identified based on their names or labels is called $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$data.

$1$ points

QUESTION $2$

$1.$ In Excel this type of chart uses dots to represent values for two different numeric variables and observe relationships between variables?

a$.$ histogram

b$.$ scatter

c$.$ surface

$1$ points

QUESTION $3$

$1.$ When working with grouped data you need to ONLY find the upper and lower limits$.$

True

False

$1$ points

QUESTION $4$

$1.$ What type of data model would help recommend the optimal course of action or strategy moving forward?

a$.$ descriptive

b$.$ diagnostic

c$.$ predictive

d$.$ prescriptive

$1$ points

QUESTION $5$

$1.$ A MAPE value of $8\%$ means that the average difference between the forecasted value and the actual value is $8\%.$

True

False

$1$ points

QUESTION $6$

$1.$ Match each example to an appropriate level of measurement.

car brand

age

rank of an Olympic athelete

temperature in Fahrenheit

a$.$ ratio level

b$.$ ordinal level

c$.$ interval level

d$.$ nominal level

$1$ points

QUESTION $7$

$1.$ The probability that a population parameter will fall between a set of values for a certain proportion $($percentage$)$ of times is called the $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

$1$ points

QUESTION $8$

$1.$ Which is a smoothing method based on the idea of averaging random fluctuations in the time series to identify the underlying direction in which the time series is changing.

a$.$ moving average

b$.$ historical analogy

c$.$ linear regression

$1$ points

QUESTION $9$

$1.$ The smaller the sample, the smaller the sampling error

True

False

$1$ points

QUESTION $10$

$1.$ A forecasting model that gives less prioity $($weight$)$ to older data and more to newer data is called?

a$.$ moving$-$average

b$.$ exponential smoothing

c$.$ qualitative smoothing

$1$ points

QUESTION $11$

$1.$ Match the following terms to their definitions.

independent variable

dependent variable

control group

confounding variable

a$.$ explanatory variable $$ a variable that causes change in another

b$.$ an unmeasured variable that influences both the supposed cause and effect

c$.$ response or affected variable

d$.$ receives either no treatment, a standard treatment whose effect is already known, or a placebo

$1$ points

QUESTION $12$

$1.$ Which statistical function measures how spread$-$out the data is from its mean and expresses the result in the same units as the data?

a$.$ VAR

b$.$ STDEV

$1$ points

QUESTION $13$

$1.$ Which description of a trendline in a time$-$series model indicates seasonal effects?

a$.$ A line moving at a fairly constant rate upward and to the right.

b$.$ A trend line that dips significantly downward every summer.

c$.$ A trendline with intermittant spikes at non$-$regular intervals.

$1$ points

QUESTION $14$

$1.$ Which of the following are commercial softwares used in Business Analytics?

a$.$ IBM Cognos Express

b$.$ SAS Analytics

c$.$ Tableau

d$.$ all of the above

$1$ points

QUESTION $15$

$1.$ There is an specific function in Excel called RANGE that is used to determine the range of data in a data set.

True

False

$1$ points

QUESTION $16$

$1.$ The qualitative process used to arrive at a group opinion or decision by surveying a panel of experts is called the $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

$1$ points

QUESTION $17$

$1.$ A $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$can be a written or verbal description, a visual representation, a mathematical formula, or a spreadsheet.

$1$ points

QUESTION $18$

$1.\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ analysis examines the chance or consequences associated with something happening. It's the possibility of "something bad" happening.

$1$ points

QUESTION $19$

$1.\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$is the technical process of mining data, cleaning data, transforming data and is not just confined to business applications$$it$$s used across disciplines, from the government to science.

$1$ points

QUESTION $20$

$1.$ The more spread$-$out the values are in a dataset, the smaller the variance.

True

False

$1$ points

QUESTION $21$

$1.$ Business analytics can be used for ALL of the following: determining the best sourcing and transportation options and finding the best delivery routes, ensuring appropriate staffing levels and capabilities, and hiring the right people, and scheduling operating rooms to improve utilization, improving patient flow and waiting times, purchasing supplies, and predicting health risk factors.

True

False

$1$ points

QUESTION $22$

$1.$ Match the following types of sampling t