Consider the following data regarding students' college GPAs and high school GPAs. The estimated regression equation isEstimated College GPA = 3.38 + ( − 0.0272) (High School GPA).GPAsCollege GPA High School GPA2.093.603.733.993.563.882.834.903.514.153.873.83Copy DataStep 2 of 3: Compute the mean square error (s2) for the model. Round your answer to four decimal places.

We calculate the estimated college GPA, the error, and the squared errors. College GPAHigh School…

Answered: Consider the following data regarding…

Managerial Economics: Applications, Strategies and Tactics (MindTap Course List)

14th Edition

ISBN:9781305506381

Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris

Publisher:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris

Chapter4A: Problems In Applying The Linear Regression Model

Section: Chapter Questions

Problem 2E

See similar textbooks

Similar questions

Interpret the coefficients and calculate the price elasticity of soft drink demand.
The forecasting staff for the Prizer Corporation has developed a model to predict sales of its air-cushioned-ride snowmobiles. The model specifies that sales S vary jointly with disposable personal income Y and the population between ages 15 and 40, Z, and inversely with the price of the snowmobiles P. Based on past data, the best estimate of this relationship is S=kYZP where k has been estimated (with past data) to equal 100. If Y=11,000,Z=1,200, and P=20,000, what value would you predict for S? What happens if P is reduced to $17,500? How would you go about developing a value for k? What are the potential weaknesses of this model?
Estimate the double-log (log linear) time trend model for log cruise ship arrivals against log time. Estimate a linear time trend model of cruise ship arrivals against time. Calculate the root mean square error between the predicted and actual value of cruise ship arrivals. Is the root mean square error greater for the double log non-linear time trend model or for the linear time trend model?
In attempting to formulate a model of the passenger arrival data on cruise ships over time would a nonlinear (perhaps a multiplicative exponential) model be preferable to a linear model of cruise ship arrivals against time? What about in the case of the passenger arrivals by ferry against time?
The Questor Corporation has experienced the following sales pattern over a 10-year period: Compute the equation of a trend line (similar to Equation 5.4) for these sales data to forecast sales for the next year. (Let 2004=0,2005=1, etc., for the time variable.) What does this equation forecast for sales in the year 2014? Use a first-order exponential smoothing model with a w of 0.9 to forecast sales for the year 2014.
Savings-Mart (a chain of discount department stores) sells patio and lawn furniture. Sales are seasonal, with higher sales during the spring and summer quarters and lower sales during the fall and winter quarters. The company developed the following quarterly sales forecasting model: Y t=8.25+0.125t2.75D1t+3.50D3t where Y t=predictedsales(million)inquartert 8.25=quarterlysales(million)whent=0 t=timeperiod(quarter)wherethefourthquarterof2002=0,firstquarterof2003=1,secondquarterof2003=2,... D1t={1forfirst-quarterobservations0otherwiseD2t={1forsecond-quarterobservations0otherwiseD3t={1forthird-quarterobservations0otherwise Forecast Savings-Marts sales of patio and lawn furniture for each quarter of 2010.
Plot the logarithm of arrivals for each transportation mode against time, all on the same graph. Which now appears to be growing the fastest?

Recommended textbooks for you

Managerial Economics: Applications, Strategies an…

Economics

ISBN:

9781305506381

Author:

James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris

Publisher:

Cengage Learning

MACROECONOMICS FOR TODAY

Economics

ISBN:

9781337613057

Author:

Tucker

Publisher:

CENGAGE L

Micro Economics For Today

Economics

ISBN:

9781337613064

Author:

Tucker, Irvin B.

Publisher:

Cengage,

Managerial Economics: Applications, Strategies an…

Economics

ISBN:

9781305506381

Author:

James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris

Publisher:

Cengage Learning

MACROECONOMICS FOR TODAY

Economics

ISBN:

9781337613057

Author:

Tucker

Publisher:

CENGAGE L

Micro Economics For Today

Economics

ISBN:

9781337613064

Author:

Tucker, Irvin B.

Publisher:

Cengage,

Economics For Today

Economics

ISBN:

9781337613040

Author:

Tucker

Publisher:

Cengage Learning

Survey Of Economics

Economics

ISBN:

9781337111522

Author:

Tucker, Irvin B.

Publisher:

Cengage,

Economics (MindTap Course List)

Economics

ISBN:

9781337617383

Author:

Roger A. Arnold

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS