![The boxplots below depict the residuals from two separate fitted regressions - StatisticsHelp](images/image002.jpg)
The table below lists the numbers audience impressions (in hundred s of millions) listening to songs and corresponding numbers
The table below lists the numbers audience impressions (in hundred s of millions) listening to songs and corresponding numbers of albums sold (in hundreds of thousands). The number of audience impression is a count of the times people have heard the song. The table is based on data from USA Today. Does it appear that album sales are affected very strongly by the number of audience impressions?
Solution: We have the following scatterplot:
The correlation coefficient is computed with Excel as r = 0.795912. The critical value forand n = 9 is rc = 0.66. Since r > rc, we conclude that there is significant linear relationship between the variables.
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