Multiple Linear Regression Assignment Example | Topics and Well Written Essays - 250 words

Multiple Linear Regression - Assignment Example It penalizes the model for including too many parameters that do not contribute much in explaining the original variance. It is a modification of R2. 3. Multicollinearity is a statistical phenomenon in which two or more predictor variables in a multiple regression model are highly correlated resulting to inter-associations among independent variables. This means that one can be linearly predicted from the rest that have non-tribal degree of accuracy. Multicollinearity is a problem because it makes the data unreliable. Multicollinearity is measured using the variance inflation factor that assesses how much the variance of an estimated regression coefficient increases if the predictors are correlated, if not then the variance inflation factor becomes 1. e. From the residual vs. fitted graph, the residuals appear randomly around zero line. This indicates that the assumption of linearity is reasonable. The normal q-q plot shows that the points re lined up on the identity line and thus, the dependent and independent variables are comparable. Scale-location plot shows that there is a downward trend in residuals. Cook’s distance’s graph shows that observation 4, 15 and 25 are influential in the model. f. There are outliers in the variables Flux, East and South. Outliers in Flux are observation 19 and 25 which are ==40.6. Thus, we drop observations with outliers in East and South variables. Additionally, observation 4, 15 and 25 are considered to be influential in the dataset. e. The residual vs. fitted graph shows that residuals appear randomly around the zero line. This indicates that the assumption of linearity is reasonable. The normal q-q plot shows that the points re lined up on the identity line and thus, the dependent and independent variables are comparable. Scale-location plot shows that there is a downward trend in

Miami International Airport Research Paper Example | Topics and Well Written Essays - 1500 words

Miami International Airport - Research Paper Example The airport has three terminals, North, Central, and South. Both the Central and South terminals handle international travelers. Although public transportation from MIA is difficult, taxis, shuttles, and rental cars are available. The Miami International Airport Hotel is located right inside the airport at Concourse E. The airport has over 80 airlines providing flights to over 150 destinations around the world. It occupies 3230 acres of land in downtown Miami with its terminal undergoing an expansion of more than seven million square feet through a capital improvement program to be completed in 2014 (MIA, 2013). The Miami international airport serves other aviation facilities such as the Kendall-Tamaini Executive airport. This airport is 15 minutes away from the business center of south Miami-Dade. The airport’s proximity to Biscayne national park, Florida Keys, and Everglades’s national park makes it the perfect destination for eco-tourism. Its primary business is recr eation and private flights serving as to relieve to MIA. MIA’s general aviation center managed by the Miami-Dade aviation department offers flights round the clock, every day. Its services are minor like telephones, public lounge with vending area and restrooms (Mobile Reference, 2010). It houses the US customs and border protection that clears arriving international flights including charter, cargo, and private. Another executive airport that closely relates with MIA is the Opa-Locka Executive airport that is located just 7 miles away from MIA. It is the largest of the general Miami -Dade county airports that handle private, cargo and business flights as a relief to MIA (FAA, 2013). Chapter 2: MIA’s Airside The Division Director of  Airside Operations is a 30-year veteran Lonny Craven. He ensures the safe day-to-day operations of MIA's airfield. He also ensures Part 139 Compliance with Federal Aviation Administration (FAA) regulations. Above all, he is also responsi ble for all Airside Operations at MIA, including aircraft gate and apron control, the security and safety of aircraft , airside motor vehicle decal program, construction, cargo, aircraft parking, ramp, passenger loading bridges, access (FAA, 2013), Flight Information Display System (FIDS) and, motor vehicles and pedestrian traffic on the Aircraft Operations Area (AOA). The Airfield Operations Division of the Miami-Dade Aviation Department is divided into three different sections. These sections include Ramp Control, Aircraft Gate Control, and Access Control. Each of these Airside sections has a common goal but with distinct responsibilities and a staff reporting to the Division Director, Airside Operations. The three section's principal role is to promote the safe, secure, and efficient operating environment for passenger airlines, cargo airlines, a large General Aviation component, and all the ramp employees. The Ramp Control Section of Airside Operations ensures the safe operation of aircraft on the airfield. It also maintains the Airport's Certification; it reviews all runways, taxiways, and airport surface conditions for compliance with Federal Aviation Regulations, part 139. Ramp Control personnel  also monitor all construction activity in the Aircraft Operating Area (AOA) to ensure compliance with the Department's safety requirements. The Access Control Section monitors the access and movement of vehicles within the restricted areas. Access Control also administers the AOA decal