Correlation and Regression, statistics homework help

Use the information that is relevant for seeing whether the correlation is statistically significant and to identify and use the regression equation to make predictions.

  • For the Pearson Correlation: Figure the df (N-2) and, using an alpha of 0.05, find the critical value of the test statistic (Use the correct table in the book – Critical Value of r).
  • Make a decision about the null hypothesis – accept or reject.
  • Interpret your findings – is there a relationship between these two variables? If so, what is the nature of that relationship? Be sure to talk about strength and direction… Percents explained and unexplained… and make at least two regression predictions.
  • Speculate on why these findings might be as they are.

The file below is the test to follow by.

Critical Value of r @ 0.05. (file below)