vii. Detemine the 95 percent confidence interval for the mean annual salary for allindividuals in the population with 5.5 years of experience and 4.0 years ofpostsecondary education.vii. Detemine the 95 percent prediction interval for the mean annual salary for allindividuals in the population with 5.5 years of experience and 4.0 years ofpostsecondary education. Compare this interval with the one obtained in (vii)above and interpret the meaning of this prediction interval. Tutorial 8: Multiple RegressionThe table below reports the results of the regression analysis on the relationships betweensalary data for n=14 randomly sampled systems analysts from a large population of suchindividuals and their years of experience (Exper) and years of postsecondary education(Educ):VariableCoefficientsStandard ErrorI-statp-valueInterceptEXPER2690204.64551116.920.000825.74.040.002EDUC1603.7536.32.990.012s= 2156R-sq = 0.672R-sq (Adj) = 0.613ANOVASourceDFSSMSF-statP0.002RegressionResidualTotal21048621685243108411.281151149976464999813156012144Prediction Interval3Salary45Predicted value564676.7Prediction Interval (95%)8Lower limit515489Upper limit6138610Interval Estimate of Expected Value (95%)Lower limit11125518013Upper limit57755

A prediction interval is similar to the confidence interval expect that : the prediction interval…

vii. Detemine the 95 percent confidence interval for the mean annual salary for all individuals in the population with 5.5 years of experience and 4.0 years of postsecondary education. vii. Detemine the 95 percent prediction interval for the mean annual salary for all individuals in the population with 5.5 years of experience and 4.0 years of postsecondary education. Compare this interval with the one obtained in (vii) above and interpret the meaning of this prediction interval.

vii. Detemine the 95 percent confidence interval for the mean annual salary for all individuals in the population with 5.5 years of experience and 4.0 years of postsecondary education. vii. Detemine the 95 percent prediction interval for the mean annual salary for all individuals in the population with 5.5 years of experience and 4.0 years of postsecondary education. Compare this interval with the one obtained in (vii) above and interpret the meaning of this prediction interval.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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