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Hands on Assignment #1 1) Ten randomly chosen students at a certain university were asked how many times they smoked marijuana during the preceding



The “ATM Transactions” Excel Workbook contains a data set of Credit union transactions for 30 days at a drive-up ATM and two walk-up ATMs on-campus in student union buildings at two different university campuses.  Create a comprehensive data analysis report that addresses the following questions.  Please make sure that all of your visualizations have proper labels, titles, axis titles, and that they follow general guidelines of creating good data visualization for this

a)     Describe the data, including how many total observations there are.

b)     Include tables that count the number of observations by:

a.      Weekday

b.     Location

c.     Type of transaction

c)     Create a pie chart to illustrate the relative number of withdrawals in each location.

d)     Create a pie chart to illustrate the relative total withdrawals in each location.

e)     Create a column chart to illustrate the total deposits for the month in each location.

f)      Consider only the Withdrawal transactions. 

a.     Create a histogram for the amount withdrawn. 

b.     What is the average amount withdrawn? 

c.     What is the median amount withdrawn?

d.     What is the standard deviation of the amount withdrawn? 

e.     Create the five number summary and draw the box and whiskers plot for the amount withdrawn.

f.      Describe the distribution and general shape of the amount withdrawn. 

g.     Does the distribution look normal?  Why or why not?

h.     Are there any outliers?  How many?

i.      From this data, create a contingency table for withdrawals over $50/under $50 in one dimension and location on the other.

j.      What is the probability that a withdrawal is over $50? (i.e. what proportion of all withdrawals is over $50?)

k.     If a withdrawal if over $50, what is the probability that it originated in the driveup location?

l.      What is the probability that a withdrawal from Campus A is over $50?

m.   Are location and size of withdrawal (over/under $50) independent events?

g)     Repeat part f) for the Deposit transactions. 

h)     This data contains 30 days of transactions, with the “date” variable indicating the date of the transaction. Create a chart for the time series of withdrawal totals by date.

i)      Create a chart that illustrates the time series of total deposits by date for each location. (There should be 3 lines on this chart, since there are 3 ATM locations.)

 


Hands on Assignment #1 1) Ten randomly chosen students at a certain university were asked how many times

 

they smoked marijuana during the preceding week. Their answers were 0, 8, 0, 0, 2,

 

4, 0, 0, 6, 0. A campus newspaper article appeared, with the headline "Average

 

Student Uses No Pot." Is this a fair assessment of central tendency? Discuss the

 

alternatives.

 

2) Briefly list strengths and weaknesses of this display. Cite specific principles of good

 

graphs, as well as offering your own general interpretation. 3) The “ATM Transactions” Excel Workbook contains a data set of Credit union transactions for 30

 

days at a drive-up ATM and two walk-up ATMs on-campus in student union buildings at two

 

different university campuses. Create a comprehensive data analysis report that addresses the

 

following questions. Please make sure that all of your visualizations have proper labels, titles,

 

axis titles, and that they follow general guidelines of creating good data visualization for this

 

a) Describe the data, including how many total observations there are.

 

b) Include tables that count the number of observations by:

 

a. Weekday

 

b. Location

 

c. Type of transaction

 

c) Create a pie chart to illustrate the relative number of withdrawals in each location.

 

d) Create a pie chart to illustrate the relative total withdrawals in each location.

 

e) Create a column chart to illustrate the total deposits for the month in each location.

 

f) Consider only the Withdrawal transactions.

 

a. Create a histogram for the amount withdrawn.

 

b. What is the average amount withdrawn?

 

c. What is the median amount withdrawn?

 

d. What is the standard deviation of the amount withdrawn? e. Create the five number summary and draw the box and whiskers plot for the amount

 

withdrawn.

 

f. Describe the distribution and general shape of the amount withdrawn.

 

g. Does the distribution look normal? Why or why not?

 

h. Are there any outliers? How many?

 

i. From this data, create a contingency table for withdrawals over $50/under $50 in one

 

dimension and location on the other.

 

j. What is the probability that a withdrawal is over $50? (i.e. what proportion of all

 

withdrawals is over $50?)

 

k. If a withdrawal if over $50, what is the probability that it originated in the driveup

 

location?

 

l. What is the probability that a withdrawal from Campus A is over $50?

 

m. Are location and size of withdrawal (over/under $50) independent events?

 

g) Repeat part f) for the Deposit transactions.

 

h) This data contains 30 days of transactions, with the “date” variable indicating the date of the

 

transaction. Create a chart for the time series of withdrawal totals by date.

 

i) Create a chart that illustrates the time series of total deposits by date for each location. (There

 

should be 3 lines on this chart, since there are 3 ATM locations.)

 


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