Russo decided that the results from regression 1 was inconclusive for him to make decisions on the two mdps (see description of the exam in the front) his boss, stanley, came up and said to russo, "whatever our ad copy or ad spending is, our competitor always spends $19! " russo was suspicious of stanley's assertion, so he ran a second regression with competitor ad spending as the dependent variable. the results are shown below, and explain: 1. what are the effects of the three independent variables (dumcopy, dumseg, nopanead$) on competitor's ad spending dollors? 2. based on the regression results and your explanation in part 1 of this question, do you agree with stanley or not? explain why in details. coefficients standardized coefficients beta unstandardized coefficients std. error sig model (constant) nopaneads dumseg dumcopy 9.713 851 917 9.083 2.726 425 1.920 1.920 293 .070 693 3.563 2.003 478 4.732 .002 .059 638 .000 a. dependent variable: compad$

Which scenarios are most effectively explored by conducting an experiment? there is more than one correct answer. select all that apply. researchers want to study the effectiveness of a particular drug for treating migraines. they want to know which dosage of the drug yields the best results with the least side effects. to ensure fair results, the researchers want to ensure that participants and dosage administrators do not know which dosage participants receive. a teacher wants to plan a class fieldtrip and quickly determine where students prefer to go for the class fieldtrip. a car mechanic wants to know which of two engine brands makes better-performing engines. he wants to test the engines in identical situations and rate their performance in a way that can be fairly measured. a chemist studies the properties of a metal compound. she wants to know how the sample size of the metal affects its ability to conduct electricity. she wants to conduct the research in a controlled environment to minimize bias. a realty company wants to know the average income of its clients. the company wants to gather data income from current clients.