Case 1: Century National Bank
The Century National Bank has offices in several cities in the Midwest and the southeastern part of the United States. Mr. Dan Selig, president and CEO, would like to know the characteristics of his checking account customers. What is the balance of a typical customer? How many other bank services do the checking account customers use? Do the customers use the ATM service and, if so, how often? What about debt cards? Who uses them, and how are they used?
To better understanding the customers, Mr. Selig asked Mrs. Wendy Lamberg, Director of planning, to select a sample of customers and prepare a report. To begin, she has appointed a team of us. Then, we started by selecting a random sample of 60 customers. In
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of checking accounts | 32 up to 453 | 4 | 453 up to 874 | 6 | 874 up to 1295 | 9 | 1295 up to 1716 | 16 | 1716 up to 2137 | 16 | 2137 up to 2558 | 9 |
As we see , more than half of the accounts are clustered in two classes between 1295 to 2137
From that we can identify the typical costumer by calculate the mean of these two classes
The mean account balance of a typical costumer is 1709.125 , and the value along which most of the account balance cluster is 1721.5
We have 12 of the checking accounts are above 2000 which represent 20% of the total checking account
Q2.
Determining the mean and the median of the checking accounts for Century National Bank, we are trying to find the single value that will represent all 60 checking accounts in our sample. That single value will be measure of central tendency.
Arithmetic mean is widely used measure of central tendency. It has several important properties: 1. Every set of interval-level data has a mean 2. All the values are included in computing a mean 3. A set of data has only one mean 4. The mean is useful measure for comparing two or more populations 5. The arithmetic mean is only measure of central tendency where the sum of the deviations of each value from the mean will always be zero
2. Based on the scale of measurement for each variable listed below, which measure of central tendency is most appropriate for describing the data?
The Bank of the United States was designed to make money and build an economy. It was designed by men like Alexander Hamilton and Robert Morris, but did not benefit the common citizen as much as wealthy investors. Why did a fledgling government need to borrow millions from overseas in order to invest in a “national” bank, to turn around and then borrow the same money back and pay interest on it? The banking system developed by Alexander Hamilton and Robert Morris was prime pickings for speculators, and laid the groundwork for a history of unscrupulous activity regarding our nation’s money supply that continues to this day. The signatures on the Constitution were barely dry before corruption and
The Republic National Bank of Dallas is the leading lending institutes in the Dallas area and in all of Texas. In 1977 the current marketing director for RNBD was asked to assess the effect of offering a new type of account, an interesting paying account that allows for negotiable orders of withdrawal called a NOW account. The NOW account originated in the New England states in 1972 and have grown to be a sizable amount of all accounts held in the that area. With 50 months of data available to see how the NOW accounts have influence banking and the traditional checking accounts in the area, it was time for RNDB, a leader and innovator in retail bank accounts in the Dallas area, to consider the potential of offering
· How were measures of central tendency used in the study? Did the study use the most appropriate measure of central tendency for the given data? Why or why not?
Dealers The smallest dealer had 11 cars sold and the largest had 154 cars sold. If you were going to create a frequency distribution of the number of cars sold using six classes in your frequency distribution, which of the following might be a
4. Calculate the following measures of central tendency for the set of cube measurement data. Show your work or explain your procedure for each.
1. By hand, compute the mean, median, and mode for the following set of 40 reading scores:
5. When is it more appropriate to use the median as a measure of center rather than the mean? Why?
With the 95% Confidence Interval for Mean, Median, and St Dev are as described above.
Statistics has become one of the major mathematics learning areas as interpreting and working with a number of data became important numeracy skills according to the development of new technologies. Different statistics will be collected during secondary research process. The collected data will be described, compared, evaluated, interpreted and displayed in relation to the topic in assignment 3.
A learning team from the University of Phoenix researched a problem that was presented from Century National Bank. Century National Bank conducted a study in regards to the use of its automatic teller machines (ATMs). Of particular interest is whether accountholders with balances less $1000, those with balances between $1000 and $2000, and those with balances over $2000 are most likely to execute a bank transaction using the machines.
During the past decade, we have undergone enormous changes in the way that we conduct business. ATM check cards, credit cards, and preferred customer cards are the most common buying tools today. Check, or debit, cards are ATM cards that function just like cash. Customers can now make payments with their check cards
The bank sells its full slate of products on its website. At the top of the home page is a list of pull down menus (banking, credit cards, lending, etc.) which display all of the product offerings. Banking includes all of the traditional account types that a person can open or, in some way, access. The banking tab displays a menu that includes types of accounts and services that are available to Citibank's customers. Accounts include checking and different savings options which can then be pulled down to reveal even more options. The checking tab has four different types that are geared toward four different categories of customer, and some specialty accounts. These are named basic checking, the Citibank account, Citigold interest checking the Citibank student account, and there have even been accounts started specifically with women in mind (Yadav, 2004). All of the other banking options offer similar pull down menus which give the customer a variety of options and details what the various options entail. Under the credit cards tab the company helps the customer choose what type of card they want by asking them to answer some questions first. The borrower is asked what type of card they are looking for, what financial options they want and what rewards the individual desires. All of this is to help choose the appropriate card for the particular customer. The tabs across the top of the page continue with
Why is this so? What are the differences in the statistics courses taught in the Engineering College, the Psychology or Sociology
Mean, Mode and Median Ungrouped and Grouped Data Ungrouped Data refers to raw data that has been ‘processed’; so as to determine frequencies. The data, along with the frequencies, are presented individually. Grouped Data refers to values that have been analysed and arranged into groups called ‘class’. The classes are based on intervals – the range of values – being used.