Course Project: AJ Davis Department Stores Natasha Unaphum MATH533: Applied Managerial Statistics September 10th‚ 2014 Professor Rolston Introduction: AJ Davis is a department store chain‚ they are trying to get to know more about their clientele and to further expand their business. A sample of 50 credit customers are selected for this research‚ information that includes‚ location (rural‚ urban or suburban)‚ Income (in $1‚000)‚ size (household size)‚ years (number
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4273 Rural 3 30 2 14 3067 Rural 3 22 4 16 3074 Suburban 2 46 5 13 4820 Suburban 2 66 4 20 5149 The following report presents the detailed statistical analysis of the data collected from a sample of credit customers in the department chain store AJ DAVIS. The 1st individual variable considered is Location. It is a categorical variable. The three subcategories are Urban‚ Suburban and Rural. Since this is a categorical variable‚ the measures of central tendency and descriptive statistics
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Course Project Part B a. the average (mean) annual income was less than $50‚000 Null and Alternative Hypothesis H0: mu= 50 (in thousands) Ha: mu<50 (in thousands) Level of Significance Level of Significance = .05 Test Statistic‚ Critical Value‚ and Decision Rule Since alpha = .05‚ z<-1.645‚ which is lower tailed Rejection region is‚ z<-1.645 Calculate test statistic‚ x-bar=43.74 and s=14.64 Z=(43.74-50)/2.070=-3.024 2.070 is calculated by: s/sq-root of
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First chart up is the variable location. Three categories are listed in the charts. Frequency Distribution: Location Frequency Urban 21 Suburban 15 Rural 14 As the Pie Chart above shows the majority of the customers comes from the rual areas totaling 42% The Second will be the size chart. This will measure tendency‚ variation‚ mean‚ median and mode. Descriptive Statistics: Size Mean 3.42 Standard Error 0.24593014 Median 3 Mode 2 Standard Deviation 1.73898868 Sample Variance
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Alright i’m not putting a lot of detail math is math okay. look this are the four symbols %X +- okay . Also to continue my Math course go to Cool Math Games. Punctuaintion . Declarative is stating something. ? Intterrogative is stating a question ! Exclamatory means sentence with expression . is stating a command. Grammar Parts of speech NOUNS Person place or thing PRONOUNS I you they ADJECTIVES Happy more these INTERJECTIONS OUCH! OW! DARN! PREPOSITIONS
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Table of Contents Model A The very first differential equation that one typically encounters is the equation that models the change of a population as being proportional to the number of individuals in the population. In symbols‚ if P(t) represents the number of individuals in a population at time ‚ then the so called called exponential growth model is: Recall that the general
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Project Part C Summary Report Management at the A. J. Davis company wishes the business to retain a competitive edge in the marketplace; ergo‚ they had statistical data collected regarding a selection of their customers who carry credit with the corporation. Based upon studies conducted on this data‚ it can be stated with a high degree of confidence that relationships do exist between certain discreet portions of the information gathered. Household Size vs. Credit Balances Predictably‚ the
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Project: Group Comparisons You are a statistician hired by a company owner for data analysis of employee records. For your first assignment‚ the owner wants you to find and compare data for full-time employees in the sales department and full-time employees in the advertising department. |Name: fernando pirela |Date: 05/26/12 | |Score | | | You
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Administration of Justice (AJ) Program. This program is designed to assist students in preparing themselves for “entry-level and beyond” employment opportunities in the Criminal Justice System (CJS)‚ and ideally for future transfer to 4-year colleges and universities. Historically‚ the end goal of a substantial percentage of AJ/CJS students has been entry-level employment upon completion of the AJ degree or certificate. THIS IS THE MEASURE OF SUCCESS THAT THE CHAFFEY COLLEGE AJ PROGRAM IS ATTEMPTING
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PROJECT C MATH 533 INSTRUCTOR Prof AMIR SADRAIN 1. Generate a scatterplot for CREDIT BALANCE vs SIZE Regression Analysis: Credit Balance ($) versus Size 2. Determine the equation of the "best fit" line‚ which describes the relationship between CREDIT BALANCE and SIZE. There is a slight positive relationship between credit balance and size The regression equation is Credit Balance ($) = 2591 + 403 Size 3. Determine the
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