The accompanying data set contains four variables, x 1 , x 2 , x 3 , and

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The accompanying data set contains four variables, x1, x2, x3, and x4.
a. Subset the data set to include only observations that have a date on or after May 1, 1975, for x3. How many observations are in the subset data?

b. Split the data set based on the binary values for x4. What are the average values for x1 for the two subsets?

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Business Analytics Communicating With Numbers

ISBN: 9781260785005

1st Edition

Authors: Sanjiv Jaggia, Alison Kelly, Kevin Lertwachara, Leida Chen

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