Statistics Essay
Project Title: Employee retention at D&Y consulting firm
Section E:
Group 2:Anshul Garg (11FN015)Finance Gokul Sudhakaran(11DM039)Marketing Kaviya .A. (11DM057) Marketing Nikhil Gagrani(11DM089) Marketing Sheth Dharmil Nirupam(11DM147)Marketing Taru(11IB061)International Business
Submission Date: 9th September,2011
TABLE OF CONTENTS
1. Case
2. Objective of the problem
3. Methodology used
4. Analysis
5. Excel output
6. Conclusion
7. Managerial implications
CASE: EMPLOYEE RETENTION AT D&Y CONSULTING FIRM
Demand for systems analysts in the consulting industry is very strong. …show more content…
d) Among all employees whose starting salary is below the median ($37,750), find a 95% confidence interval for the proportion who stay with D&Y for at least 3 years.
e.) Find a 95% confidence interval for the proportion who stay with D&Y for at least 3 years but this time with starting salaries above the median.
f) Find a 95% confidence interval for the difference between these proportions. From this interval, can we conclude that there is a significant difference in the proportions at the 5% level of significance?
2. D&Y wonders whether the percentage of time on the road might influence who stays and who leaves.
a. Among all employees who travel less than the median (54%), find the 95% confidence interval for the proportion who stay with D&Y for at least 3 years.
b. Do the same for the employees that travel more than the median who have stayed beyond 3 years.
c. Then find the 95% confidence interval for the difference between proportions. From this confidence interval, can we conclude that there is a significant difference in the proportions?
3.Find a 95% confidence interval for the mean tenure(in months) of all employees who leave D&Y within 3 years of being Hired. Why is it not possible with the given data to find a confidence interval for the

Statistics in Business
642 Words  3 PagesStatistics in Business Debbie Masterson University of Phoenix Statistics for Decision Making QNT/275 Charlene Dunfee December 13, 2014 Statistics in Business In today’s very competitive and global economic climate, it is ever more important for businesses to have reliable data to predict and plan. Definition of Statistics and Role in DecisionMaking Statistics are the collection, presentation and interpretation of data. Statistics is a branch of mathematics and is a mathematical analysis…

Statistics
1177 Words  5 Pages0,38 Annex F2 Residual plots, thrid model Annex G1 Descriptive statistics, part 3460217 Annex G2 Descriptive statistics, part9251677 Annex G3 Descriptive statistics, part8236516 Annex G4 Descriptive statistics, part 7839488 Annex G5 Descriptive statistics, facility Christiansen Annex G6 Descriptive statistics, facility Bugendorf Annex G7 Descriptive statistics, facility Albertos aNNEX g8 Descriptive statistics, facility Del Rio…

Statistics
3517 Words  15 Pages(1) more than unmarried students. Kendall’s Coefficient of Concordance (W) Kendall’s W extends Spearman Rho to more than two groups. This procedure is useful for studies in which three or more groups create rankings of items. The resulting statistic represents the level of agreement among the groups in ranking the items. For example, you could create a list of ten competencies required of an effective minister of education. You then send this list to a sample of pastors, a sample of ministers…

Questions on Statistics
934 Words  4 PagesGenetics website: HYPERLINK "http://www.ndsu.edu/pubweb/~mcclean/plsc431/mendel/mendel4.htm" http://www.ndsu.edu/pubweb/~mcclean/plsc431/mendel/mendel4.htm How would you explain the analysis of variance, assuming that your audience has not had a statistics class before? (75 words) Analysis of variance (ANOVA) is a collection of statistical models that help explain variance in a variable. They explain the variance by dividing a variable into smaller component parts. ANOVAs can be used to compare the…

Rape Statistics
1600 Words  7 PagesRape Statistics Working at a Historic Black College/University (HBCU) for the past three (3) years, I just recently came in contact with a rape victim. I’ve seen the shows but never thought, I would be a person to come in contact with one. Talking to the different individuals involved with the student case, I decided to do my research paper on rap victim. Specifically, I am looking at how the likelihood of being the victim of a violent crime in the United States is related to gender and…

Statistics Essay
1417 Words  6 PagesExecutive Summary Business Statistics In this assignment I compiled the data of the Nissan GTR 3.8 (R35). The Data collected includes the age, type and price which allowed me to make a statistic about how the age affects the price of this certain model over several years. I will be using the correlation regression and scatter diagram to get the regression line. As we can see, the price drops the elder the car is. Inside the range of the diagram the prediction might be accurate. So we can tell…

Statistics
2770 Words  12 Pages2009.0  12051.5  27.34  85.0  36.09  594.48  Where market price is dependent variable and ROE, DPS, P/E, and NP are independent variable. Model Summaryb  Model  R  R Square  Adjusted R Square  Std. Error of the Estimate  Change Statistics  DurbinWatson       R Square Change  F Change  df1  df2  Sig. F Change   1  .987a  .974  .954  840.25403  .974  47.163  4  5  .000  2.660  a. Predictors: (Constant), NP, ROE, PE, DPS        b.…

Use of Descriptive Statistics over Inferential Statistics
659 Words  3 PagesQ1. When would you use descriptive over inferential statistics? Provide a specific scenario and explain your rationale. "Descriptive statistics is the term given to the analysis of data that helps describe, show or summarize data in a meaningful way such that, for example, patterns might emerge from the data" (Understanding descriptive and inferential statistics, 2012, Laerd). Examples of descriptive statistics include an analysis of central tendency (the position of most members of the group in…

Statistics
1129 Words  5 Pagesthe governors were 44, 36, 52, and 40 square feet. The figures for the CEOs were 32, 60, 48, 36 square feet. a. Figure the means and standard deviations for the governors and CEOs. b. Explain, to a person who has never had a course in statistics, what you have done. c. Note the ways in which the means and standard deviations differ, and speculate on the possible meaning of these differences, presuming that they are representative of U.S. governors and large corporations’ CEOs in general…

Business Statistics
1907 Words  8 PagesBusiness Statistics Received 96% Question 1 (20 Marks) A computer used by a 24hour banking service is supposed to randomly assign each transaction to one of 5 memory locations. A check at the end of a day's transactions gave the counts shown in the table to each of the 5 memory locations, along with the number of reported errors. Memory location  1  2  3  4  5  Number of transactions  82  100  74  92  102  Number of reported errors  11  12  6  9  10  At 5% level of…
More about Statistics Essay

Statistics in Business
642 Words  3 Pages 
Statistics
1177 Words  5 Pages 
Statistics
3517 Words  15 Pages 
Questions on Statistics
934 Words  4 Pages 
Rape Statistics
1600 Words  7 Pages 
Statistics Essay
1417 Words  6 Pages 
Statistics
2770 Words  12 Pages 
Use of Descriptive Statistics over Inferential Statistics
659 Words  3 Pages 
Statistics
1129 Words  5 Pages 
Business Statistics
1907 Words  8 Pages