Discussion Post: Research Methodology
1) When is the chi-squared statistic used in testing hypotheses? Include underlying assumptions and the test statistic for testing hypotheses on a single population variance.
2) What is a correlation coefficient? What is the range of its possible values, and why?
3) How do you determine if a correlation coefficient is statistically significant?
4) In a simple regression, what is the coefficient of determination, and how is it interpreted?
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.