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Represents the dependent variable

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1. The following statistics were calculated from pairs of observations where X represents the independent variable and Y represents the dependent variable.

Σx = 511 Σy = 314 Σxy = 19,064
Σx^2 = 34,234.5 Σy^2 = 13,036 n = 8

Determine the least squares line.

Determine the sample correlation coefficient between X and Y.

Determine if there is a linear relationship between X and Y at the .10 significance level.

Find a 90% confidence interval for the slope of the regression line.

Find a 90% confidence interval for the mean of Y if X = 60.

Find a 90% prediction interval for Y if X = 60.

Reference no: EM13895038

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