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Author Question: You are interested in understanding why some people send more e-mail messages than others do. One ... (Read 102 times)

nelaaney

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on: Jun 24, 2018
You are interested in understanding why some people send more e-mail messages than others do. One possible explanation may be the age of the individual. Older people tend to be less computer savvy, and may have fewer friends who use e-mail.
 
  You examine the number of e-mails a person sends weekly using regression analysis and come up with the following equation of the regression line:Number of e-mails = 63 - 0.5 Age. Interpret these results.

Question 2

What is the total revenue generated by Malcolm Airlines?
 
  A) 120,000
  B) 480,000
  C) 192,000
  D) 256,000


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kkenney

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Reply #1 on: Jun 24, 2018
Answer to Question 1

There appears to be a negative relationship between the age of a person and the number of messages they send.
The Y intercept b0 = 63 is meaningless in this situation.
The slope b1 = -0.5. This means that for each year older a person is, we would expect them to send approximately 0.5 fewer e-mails per week.

Answer to Question 2

D


nelaaney

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Reply 2 on: Jun 24, 2018
Gracias!

deja

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Reply 3 on: Yesterday
Excellent

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