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A sample data set produced the following information n 12

A sample data set produced the following information.

n = 12, ∑x = 66, ∑y = 588, ∑xy = 2244

∑x2 = 396, and ∑y2 = 58,734

a. Calculate the linear correlation coefficient r.

b. Using a 1% significance level, can you conclude that is negative?

n = 12, ∑x = 66, ∑y = 588, ∑xy = 2244

∑x2 = 396, and ∑y2 = 58,734

a. Calculate the linear correlation coefficient r.

b. Using a 1% significance level, can you conclude that is negative?

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