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Scatter plot and correlation:

Construct a scatter plot, Find the value of the linear correlation coefficient r, and find the critical value of r using α=0.05. Determine whether there is sufficient evidence to support a claim of a linear correlation between the two variables.

CPI and Pizza the paired values of the consumer price index (CPI) and the cost of a slice of pizza are listed below: Is there a linear correlation between the CPI and the cost of a slice of pizza?

                          30.2   48.3     112.3   162.2   191.9   197.8

            0.15     0.35     1.00     1.25     1.75     2.00








Cost of Pizza







Statistics and Probability, Statistics

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  • Reference No.:- M922339

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