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Inferential statistics and linear correlation

A study was conducted with alpha = 0.05 to determine if there is a significant linear correlation between the number of credit hours earned at the time of taking statistics 101 and the grade in the course. Eight pairs of data were collected.

The linear correlation coefficient is y = 0.6777

Pick the correct answer

a. There is a significant linear correlation
b. There is not a significant linear correlation

Determine the proportion of variation in grade that can be explained by the linear correlation between the grade and the number of credit hours earned at the time of taking the course. (round to nearest hundredth).

Solution Preview

The correct answer is that there is a significant correlation, because the value of the correlation ...

Solution Summary

This solution identifies the correct relationship of linear correlation and determines the proportion of variation in grade with explanations.

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