Qmb 3200 Final Exam Answered 100%

QMB 3200 Final Exam Answered 100%Confidence interval interpretation - ANS-we are 95% confident that the mean y, with _________, falls between (upper value) and (lower value)A confidence interval interpretation applies to the - ANS-mean of all unitsslope interpretation - ANS-for every 1 unit increase in x1, y will either increase or decreasetheoretical confidence interval interpretation - ANS-in repeated sampling, 95% of all similarly constructed intervals will contain the true mean of all _____________prediction interval interpretation - ANS-in repeated sampling, 95% of all similarly constructed intervals will contain the true mean of ___________standard deviation interpretation - ANS-approximately 95% of actual values will fall within 2s of their predicted valuesR2 practical interpretation/ coefficient of determination - ANS-about _______ % of the sample variation in prices can be explained by the simple linear model.4 standard error regression assumptions - ANS-1. errors are independent2. mean error=03. errors are normally distributed4. variance of the errors is constant for all x-valuesalways look at ___________ to determine positive or negative linear relationship - ANS-coefficient on p/o #4what could prevent you from recommending the model as a predictor of y? - ANS-a very high value for 2schi-squared test can be used for determining - ANS-independenceANOVA