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Author Question: In a scatter diagram, the more tightly clustered the data points are around a straight line, the ... (Read 37 times)

saliriagwu

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on: Jun 20, 2018
In a scatter diagram, the more tightly clustered the data points are around a straight line, the __________ the correlation coefficient is between the two variables.
 
  a. lower
  b. higher
  c. closer to zero
  d. weaker

Question 2

Steve wants to examine the linear relation between the number of times a commercial appears on television and the dollar sales of the advertised product. Which of the following correlation coefficients should Steve calculate?
 
  a. product-moment correlation coefficient
  b. Spearman rho
  c. point-biserial correlation
  d. phi coefficient


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missalyssa26

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Reply #1 on: Jun 20, 2018
Answer to Question 1

b

Answer to Question 2

a


saliriagwu

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Reply 2 on: Jun 20, 2018
Wow, this really help

amcvicar

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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