DSCI Exam 1 2023 with 100% correct answers

if last month's forecast was 10, last month's actual was 100 and the exponential smoothing alpha parameter value is .2, what is the exponential smoothing forecast - - correct answer 28 The upper bound for for the number of predictor parameters in multiple linear regression is - - correct answer limited only by computing resources ___________ is a synonym for independent. - - correct answer Predictor The error term, or epsilon, is the _______________ part of the model. - correct answer non-deterministic What is a synonym for 'causal', as causal is used in 'causal method'? - - correct answer biometric The estimated value of y, denoted by yHat, is based on the ________ values of the Betas. - - correct answer actual The error terms (denoted by epsilon) of statistical models are assumed to __________. - - correct answer sum to zero In the 1920's, what demand was projected to grow so great that everyone would have to be one? - - correct answer telephone operators The motivation for the Mean Absolute Percentage Error is to _________. - - correct answer create a unitless metric ___________ is a synonym for dependent. - - correct answer response In time-series analysis, the actual value is analogous to the ____________ in regression analysis. - - correct answer observed value ________ is a synonym for error in multiple linear regression - - correct answer residual