What is a dummy variable, and how is it useful to multiple regression? Give an example of three dummy variables that could be used in describing your home town.
Answer to relevant QuestionsA multiple regression equation has been developed for y = daily attendance at a community swimming pool, x1 = temperature (degrees Fahrenheit), and x2 = weekend versus weekday (x2 = 1 for Saturday and Sunday, and 0 for the ...A safety researcher has measured the speed of automobiles passing his vantage point near an interstate highway. He has also recorded the number of occupants and whether the driver was wearing a seat belt. The data are shown ...Data file XR16058 lists the following data for a sample of automatic teller machine (ATM) customers: time (seconds) to complete their transaction, estimated age, and gender (1 = male, 0 = female). a. Determine the multiple ...In Chapters 11 and 14, we visited Circuit Systems, Inc., a company that was concerned about the effectiveness of its new program for reducing the cost of absenteeism among hourly workers. Besides allowing employees to be ...Repeat Exercise 17.17, using the data in file XR17017, but with y = total operating revenue (millions of dollars), x1 = number of aircraft, and x2 = number of employees. Repeat exercise The Air Transport Association has ...
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