Question: Q) in Linear Regression from introduction to statistics. please see picture attached and answer the given questions. Question. A marketing firm wished to determine whether

Q) in Linear Regression from introduction to statistics. please see picture attached and answer the given questions.

Q) in Linear Regression from introduction to statistics. please see picture attached

Question. A marketing firm wished to determine whether the number of television commercials (X) broadcast was correlated with the sales (Y) (in hundred thousandsof dollars} of its product. The data are given in the table below: 3) Calculate 55(X), 55(Y), SS(XY) and (r) for the given data. (Write the details of the solution) b) Is there a relationship between x and Y? If yes, of what type? C) Select the correct choice: The variables x and Y have a weak positive correlation. weak negative correlation. moderate positive correlation. moderate negative correlation. high positive correlation high negative correlation

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