Linear Regression and Analysis

The management of beta Technologies is trying to determine the variable that best explains the variation of employee salaries. Using the file provided, estimate simple linear regression models to identify which of the following has the strongest linear relationship with annual salary: employee age, number of year of relevant wor ...continues

Multiple Regression Model

A trucking company wants to predict the yearly maintenance expense (Y) for a truck using the number of miles driven during the year (X1) and the age of the truck (X2 in years) at the beginning of the year. The company has gathered data given in the file 11_16.xls. See attached. Note that each observation corresponds to a particu ...continues

Multiple Regression

An antique collector believes that the price received for a particular item increases with its age and with the number of bidders. The attached file contains data on these three variables for 32 recently auctioned comparable items. a) Formulate and estimate a multiple regression model using the given data. Interpret each of t ...continues

Multiple regression

The owner of a pizza restaurant chain would like to predict sales of his specialty deep dish pizza. He gathered data on the monthly sales of deep dish pizzas at his restaurant and observations on other potentially relevant variables for each of his 15 outlets in central Penn. Data is attached. a) Estimate a multiple regressio ...continues

HRIS

Can you help me to identify and research two to three companies (not WORK source or Toshiba America Medical Systems Inc) that have dealt with issues similar to Human Resource Information System. For each company I would need to discuss the following in a one-page synopsis: (1) situation facing the company (including the key issu ...continues

Time Series

Consider the attached file, which contains total monthly US retail sales data. While remembering 6 months of observations for validation purposes, use the method of moving averages with a carefully chosen span to forecast US retail sales in the next year. Comment on the performance your model. What makes this time series more ch ...continues

Time Series

Consider the airline ticket data in the attached file. a) Create a time series chart of the data. Based on what you see, which of the exponential smoothing models do you think should be used for forecasting? why? b) Use exponential smoothing to forecast these data, using no holdout period and requesting 12 months of future ...continues

Time Series

The U Credit Union is open Monday through Saturday. The Winters' method is being used (a = B = y = 0.5) to predict the number of customers entering the bank each day. After incorporating the arrivals of 16 October, Lt = 200, Tt = 1, and the "seasonalities" are as follows: Monday, 0.90; Tuesday, 0.70; Wednesday, 0.80; Thursday, 1 ...continues

Strategic Analysis and Selection of Information Systems

Using these articles: Collaborative Computing and True Enterprise Architecture Is Still Two Years Away, http://ww.cio.com/archive/101501/nobody.html B2B: Execution of the Concept Is Key to Success,, http://ww.cio.com.archieve/051502/netgains.html Explain the relationship between business strategy and IT strategy. Were ...continues

IT outsourcing/offshoring strategy

For Your Comfort (FYC), an ergonomic furniture manufacturing company was a dream founded by Ronald J. Dirksen and Richard Woodart in 1947, the year after World War II ended. War veterans were returning home and wanted to lead a life of material comfort; FYC's trademark Easy Couch was a seller! The company expanded its line of fu ...continues