MGT-6655: Week 1 QUESTIONS AND
VERIFIED CORRECT ANSWERS
GRADED A+ LATEST 100%
GUARANTEED PASS
Suppose you want to check the relationship between product sales and product
discount. Which of the following chart types is the most appropriate?
Bar chart
Line chart
Pie chart
Scatterplot - CORRECT ANSWER-Scatterplot
Suppose you want to check the distribution of product sales. Which of the following
chart types is the most appropriate?
Bar chart
Line chart
Histogram chart
Scatterplot - CORRECT ANSWER-Histogram chart
Which of the following survey questions would generate a dummy variable?
On a scale from 1-10, how likely will you recommend our product to your friends?
What is your zip code?
How far are you roughly from the nearest bus stop?
Have you watched the movie Jurassic Park? - CORRECT ANSWER-Have you watched
the movie Jurassic Park?
Which of the following is incorrect?
A continuous variable can be converted to a dummy variable
A categorical variable can be converted into a dummy variable
A dataset with missing values cannot be used at all
Twitter posts are an example of unstructured data - CORRECT ANSWER-A dataset
with missing values cannot be used at all:Missing values of a dataset can be recorded
, as NULL or some other way or can be imputed in a appropriate manner so the dataset
can be used
Suppose a dataset has a minimum of 1, 10th percentile of 2, 25th percentile of 3,
median of 5, 65th percentile of 6.2, 75th percentile of 8.3, 90th percentile of 10, max of
21.3. What is the interquartile range?
1
5.075
5.3
20.3 - CORRECT ANSWER-5.3
Which one of the following about regression is incorrect?
Regression helps us understand a relationship between two variables
A regression line can be fitted over a scatterplot
If the coefficient of X in a regression of Y over X is positive, it means that if we increase
X, Y will definitely increase as a result
The higher the R-squared, the better the regression fit - CORRECT ANSWER-If the
coefficient of X in a regression of Y over X is positive, it means that if we increase X, Y
will definitely increase as a result
A positive coefficient indicates positive correlation, but correlation is not causation, so
we cannot say that increasing X will definitely lead to an increase in Y.
Which of the following is a panel dataset?
Bank1 Quarter1 ROA1Bank1 Quarter2 ROA2Bank2 Quarter1 ROA3Bank2 Quarter2
ROA4
Time1 Stockprice1Time2 Stockprice2Time3 Stockprice3Time4 Stockprice4
Worker1 Company1 Salary1Worker2 Company1 Salary2Worker3 Company2
Salary3Worker4 Company2 Salary4
Country1 Area1Country2 Area2Country3 Area3Country4 Area4 - CORRECT ANSWER-
Bank1 Quarter1 ROA1Bank1 Quarter2 ROA2Bank2 Quarter1 ROA3Bank2 Quarter2
ROA4
This is panel data because it is the ROA of different banks over time
Which of the following is an example of a convenient sample?
To understand the population composition of the whole country, the United States
conducts a census every 10 years.
To understand consumer sentiment, an organization takes a random sample of
consumers based on their phone numbers in a comprehensive phone number
database.
To understand voter reaction to a candidate, a journalist goes to a grocery store closest
to his office and asks people who shop there.
To evaluate the community spread of a virus, a foreign government requires all citizens
in a city to be tested. - CORRECT ANSWER-To understand voter reaction to a
VERIFIED CORRECT ANSWERS
GRADED A+ LATEST 100%
GUARANTEED PASS
Suppose you want to check the relationship between product sales and product
discount. Which of the following chart types is the most appropriate?
Bar chart
Line chart
Pie chart
Scatterplot - CORRECT ANSWER-Scatterplot
Suppose you want to check the distribution of product sales. Which of the following
chart types is the most appropriate?
Bar chart
Line chart
Histogram chart
Scatterplot - CORRECT ANSWER-Histogram chart
Which of the following survey questions would generate a dummy variable?
On a scale from 1-10, how likely will you recommend our product to your friends?
What is your zip code?
How far are you roughly from the nearest bus stop?
Have you watched the movie Jurassic Park? - CORRECT ANSWER-Have you watched
the movie Jurassic Park?
Which of the following is incorrect?
A continuous variable can be converted to a dummy variable
A categorical variable can be converted into a dummy variable
A dataset with missing values cannot be used at all
Twitter posts are an example of unstructured data - CORRECT ANSWER-A dataset
with missing values cannot be used at all:Missing values of a dataset can be recorded
, as NULL or some other way or can be imputed in a appropriate manner so the dataset
can be used
Suppose a dataset has a minimum of 1, 10th percentile of 2, 25th percentile of 3,
median of 5, 65th percentile of 6.2, 75th percentile of 8.3, 90th percentile of 10, max of
21.3. What is the interquartile range?
1
5.075
5.3
20.3 - CORRECT ANSWER-5.3
Which one of the following about regression is incorrect?
Regression helps us understand a relationship between two variables
A regression line can be fitted over a scatterplot
If the coefficient of X in a regression of Y over X is positive, it means that if we increase
X, Y will definitely increase as a result
The higher the R-squared, the better the regression fit - CORRECT ANSWER-If the
coefficient of X in a regression of Y over X is positive, it means that if we increase X, Y
will definitely increase as a result
A positive coefficient indicates positive correlation, but correlation is not causation, so
we cannot say that increasing X will definitely lead to an increase in Y.
Which of the following is a panel dataset?
Bank1 Quarter1 ROA1Bank1 Quarter2 ROA2Bank2 Quarter1 ROA3Bank2 Quarter2
ROA4
Time1 Stockprice1Time2 Stockprice2Time3 Stockprice3Time4 Stockprice4
Worker1 Company1 Salary1Worker2 Company1 Salary2Worker3 Company2
Salary3Worker4 Company2 Salary4
Country1 Area1Country2 Area2Country3 Area3Country4 Area4 - CORRECT ANSWER-
Bank1 Quarter1 ROA1Bank1 Quarter2 ROA2Bank2 Quarter1 ROA3Bank2 Quarter2
ROA4
This is panel data because it is the ROA of different banks over time
Which of the following is an example of a convenient sample?
To understand the population composition of the whole country, the United States
conducts a census every 10 years.
To understand consumer sentiment, an organization takes a random sample of
consumers based on their phone numbers in a comprehensive phone number
database.
To understand voter reaction to a candidate, a journalist goes to a grocery store closest
to his office and asks people who shop there.
To evaluate the community spread of a virus, a foreign government requires all citizens
in a city to be tested. - CORRECT ANSWER-To understand voter reaction to a
