The first assumption of the CLR model is that Select one: a. the expected value of the error term is zero b. the functional form is linear  c. both all the relevant explanatory variables are included and the functional form is linear d. None of these e. all the relevant explanatory variables are included

8. Which methods are appropriate for categorical data? f. K-means clustering b. Logistic regression g. Linear regression h. Naïve Bayes i. Map/Reduce a. T-test c. Association rules d. Decision Trees e. Hive j. Pig

A statistical program is recommended. The Jacobs Chemical Company wants to estimate the mean time (minutes) required to mix a batch of material on machines produced by three different manufacturers. To limit the cost of testing, four batches of material were mixed on machines produced by each of the three manufacturers. The times needed to mix the material follow. Manufacturer 1 Manufacturer 2 Manufacturer 3 1 21 0 P₂- 27 (a) Define all variables. X₁ 25 23 X₂ 0 Moi Bo = 0 H₂:0 27 Ho: Poo H₂: Po=0 25 30 26 Manufacturer 1 2 3 19 18 Write a multiple regression equation that can be used to analyze the data. E(y) = 22 (b) What are the best estimates of the coefficients in your regression equation? Po - 21 (c) In terms of the regression equation coefficients, what hypotheses must we test to see whether the mean time to mix a batch of material is the same for all three manufacturers? Hoi B₁-B₂=0 H: One or more of the parameters is not equal to zero. OH: One or more of the parameters is not…

2. Find the least linear fit to the following data: * * 2 3 2 -3 -3 -1 55