Homework: Hypothesis Testing With Two Samples, Linear Regression and Correlation- Quantitative Methods and Analysis
Length: 3 pages.
Scenario:
Watch the YouTube video, and then answer the questions (Alexander W. Wiseman, 2014): "Introduction to Correlation & Regression, Part 1"
Answer the questions that follow in a 3 pages summary. The questions will guide your analysis of the situation, but they need to be presented as part of a summary on hypothesis testing, with 2 samples.
1) The chart is used to visually present relationships between what variables?
2) A correlation analysis measures the strength of what variables?
3) A correlation analysis is concerned with the strength of the relationship between what variables?
4) If the plotted intersections between variables are tight, what does that indicate about the relationship between the variables?
5) If the plotted intersections between variables are in a flat, horizontal line, what does that mean about the relationship between variables?
6) The sample correlation coefficient r is used to measure what aspect of the linear relationship?
7) What range does the sample correlation between coefficient r ranges indicate?
8) For a perfectly negative relationship (for every one unit increase in x, you have one unit of decrease in y), what is the sample correlation coefficient r equal to?
Format your homework according to the following formatting requirements:
(1) The answer should be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides.
(2) The response also includes a cover page containing the title of the homework, the student's name, the course title, and the date. The cover page is not included in the required page length.
(3) Also include a reference page. The Citations and references should follow APA format. The reference page is not included in the required page length.