Why are interaction effects only associated with factorial designs?Examine the following data table and indicate the presence of (a) main effect of A, (b)main effect of B, (c) and interaction effect. Verify this with a graph.Factor BB1B2Factor AA1105A2510

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Answered: Why are interaction effects only…

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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What is an example of a graph that shows a strong interaction effect and a graph that shows no interaction effect?
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Explain why a 3 way interaction will have more regression lines than a 2 way interaction.
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Jim and Larry run a soup stand. The data below represents the sales of soup that they had on 8 randomly selected days, along with the high temperature on that day. a) Create a scatter diagram for this data set and comment on whether there is a positive or negative relationship between these variables.b) Calculate the correlation coefficient between temperature and sales.c) Does a linear relationship exist between these variables? Explain to me why or why not this is the case.d) Using excel, calculate the least squares regression equation for this data set. e) Using your equation, predict the soup sales on a day where the temperature is 29 degrees.f) Interpret the slope of this equation.g) Can we use this data set and regression equation to predict the sales on a day when the average temperature is 102 degrees? Why or why not?h) What is the R-squared for this equation? How do you interpret that R-squared?
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The condition of an independent variable being correlated to one or more other independent variables is referred to as nonlinearity. statistical significance. multicollinearity. linearity.
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Why are interaction effects only associated with factorial designs? Examine the following data table and indicate the presence of (a) main effect of A, (b) main effect of B, (c) and interaction effect. Verify this with a graph. Factor B B1 B2 Factor A A1 10 5 A2 5 10