STATISTICS PROJECT
The balance is a interval, numerical and continuous variable. The ATM is a ratio, numerical, discrete variable. Services is a ratio, numerical, discrete variable. Debit, interest and city are a categorical, nominal variable. As the graph, shows below, the balance of the typical customer, otherwise known as the mean is equal to 1499.87. 12 customers have more than $2,000 in their account. This number is relatively high because the account balances tend to cluster between $1,000 and $2,250. The standard deviation of the checking account balances 596905 and the range is 2525. The first quartile shows that 25 percent of the data are lower 1122.50 and the third quartile shows that 75 percent of the data are
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In fact there is a very slight, insignificant difference between the two. For example the mean is higher for customers that don’t have a debit card than for one’s who do, 10.35 against 10.23. We notice that the difference between these two numbers is very slight. In addition, the maximum and minimum of customers that use ATMs with or without debit cards, helps prove the same point. The minimum for customers that don’t have debit and do have them is the same, 2. However the maximum is different. Customers that do have debit cards is 20, whereas the maximum for customers that don’t is 18. Once again the difference is so small that it is not relevant or important. Secondly, there is a difference between ATM use by those with checking accounts that pay interest versus those that do not. Once again though the difference is not shockingly big. The mean of the group of customers that do not pay interest is 10.07 and therefore lower than the group of individuals who do pay interest, 10.94. Both medians are very close, 10.00 for the customers who don’t pay interest and 10.05 for the ones who do. However the variance for the customers that don’t pay interest is higher than the variance of the customers who do. This indicates that there is a more homogenous pattern in the use of ATM by customers that pay interest. 1. Develop a regression model to predict Checking Account Balances from the number
Due to financial hardship, the Nyke shoe company feels they only need to make one size of shoes, regardless of gender or height. They have collected data on gender, shoe size, and height and have asked you to tell them if they can change their business model to include only one size of shoes – regardless of height or gender of the wearer. In no more 5-10 pages (including figures), explain your recommendations, using statistical evidence to support your findings. The data found are below:
I conducted a survey, asking 20 females and 20 males their favorite food group for my AP Statistics project. I surveyed on Wednesday, September 27 and on Thursday, September 28 at Marshall High School. They chose from protein, grain, vegetables, fruit, and dairy. From the data, I found that 10 males and 2 females liked protein best, 3 males and 2 females liked grains best, 1 male and 1 female liked vegetables best, 3 males and 13 females liked fruit best, and 3 males and 2 females liked dairy best. Half of the males liked protein best, while most females liked fruits best. The least amount of both males and females liked vegetables. From this data, we can see that males like protein more than females do, and females like fruit more than males
(c) The mean of the sample and the value of Z with an area of 5% in the left tail.
According to the website http://womenissues.about.com/cs/abortionstats/a/aaabortionstats.htm there are approximately 126,000 abortions conducted each day throughout the world. This website includes the abortion statistics of the world and breaks the data down to the demographics of the United States. It also discusses the decisions to have an abortion and the use of contraceptives in the United States. This was an informative website and included detailed statistics conducted by the Alan Guttmacher Institute. According to the website http://www.bls.gov/cps in 2000, gon average there were roughly 135 million employed and 6 million unemployed people in the labor force in the United States.h (p. 3) The websites definition of
From the data provided by DGHG, BAD have worked out the average spend per day. This data represents important information and will assist in assessing the questions to which have been asked. The overall mean (x=i=1nxin) average spend per day is $237.36 with a standard deviation (s=(x-x)2n-1) of $48.94. The standard deviation represents the distance from the mean to which a percentage of a population sits.. Through the knowledge of the empirical rule, it is known that approximately 68% of all guests have spent between, and therefore BAD can confidently say that the majority of people are spending between $188 and $286. The graph below depicts this:
4. Jake needs to score in the top 10% in order to earn a physical fitness certificate. The class mean is 78 and the standard deviation is 5.5. What raw score does he need?
Variable Body Style is qualitative, variable Weight is continuous, variable Number of Seats is discrete
A bank has issued the largest number of ATM cards in a large urban area.
A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial, they wish to determine whether there is a difference between the effectiveness for women and for men. Using = .05, what is the value the test statistic?
Dear Statistics Students, some advice in succeeding in class is students should attend class to understand the material better. The class is a four-credit class and we go through a lot of material and if you do not attended class it can cause you to miss the material. The power points are an outline so attending class helps to understand the slides and concepts better. I would not be on the phone during class incase of missing examples of concepts. Another key to success would be to practice and study the homework to become prepared for the quizzes. I would definitely work through the problems on the homework several times to understand how to do the math and to fix your past mistakes. When taking the quizzes and tests I would read the questions
Objective: To find out the risk of customers using bank accounts and provide methods for mitigation of the highest priority residual risk.
Problem 5: (3.5 points). A manufacturing process produces items whose weights are normally distributed, with a mean of 120 grams and standard deviation 10 grams.
c.)Find a 95% confidence interval for the difference between the above obtained mean starting salaries.
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
Spending habits would show us where most of their money is going. Who is making only large purchases with their cards and who is using their cards for daily expenses.