Consider the following data on y = number of songs stored on an MP3 player and x
Question:
a. Construct a scatterplot of the data. Does the relationship between x and y look approximately linear?
b. What is the equation of the estimated regression line?
c. Do you think that the assumptions of the simple linear regression model are reasonable? Justify your answer using appropriate graphs.
d. Is the simple linear regression model useful for describing the relationship between x and y? Test the relevant hypotheses using a significance level of .05.
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Related Book For
Statistics The Exploration & Analysis Of Data
ISBN: 9780840058010
7th Edition
Authors: Roxy Peck, Jay L. Devore
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