DAT 565Wk 5 Discussion Answers

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DAT/565: Data Analysis And Business Analytics

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DAT 565Wk 5 Discussion Answers

Due Thursday

Due Thursday

Respond to the following in a minimum of 175 words:

  • Construct a scatter plot with this data.
  • Do you observe a relationship between both variables?
  • Use Excel to fit a linear regression line to the data. What is the fitted regression model? (Hint: You can follow the steps outlined on page 497 of the textbook.)
  • What is the slope? What does the slope tell us? Is the slope significant?
  • What is the intercept? Is it meaningful?
  • What is the value of the regression coefficient,r? What is the value of the coefficient of determination, r^2? What does r^2 tell us?
  • Use the model to predict sales and the business spends $950,000 in advertisement. Does the model underestimate or overestimates ales?

Due Monday

Reply to at least 2 of your classmates or your faculty member. Be constructive and professional.

Copyright 2020 by University of Phoenix. All rights reserved.

DAT 565Wk 5 Discussion Answers

 

Copyright 2020 by University of Phoenix. All rights reserved.

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