[Solution] An organization believes that its Math Skill Improvement Training (MSIT) can significantly raise the algebra test scores of junior high school
Question: An organization believes that its Math Skill Improvement Training (MSIT) can significantly raise the algebra test scores of junior high school kids. They take 8 junior high students and have them complete the MSIT program. Each student takes a standardized algebra test before and after completing the program. Here are their scores.
| Before | After |
| 64 | 67 |
| 89 | 91 |
| 139 | 142 |
| 70 | 77 |
| 62 | 66 |
| 144 | 150 |
| 98 | 105 |
| 84 | 89 |
- State the scientific hypothesis and the PCH (plausible competing hypothesis) of chance
- Is the scientific hypothesis directional or non-directional? Why?
- Name the test statistic you will use to decide between the statistical hypotheses.
Deliverable: Word Document 
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[Solution] An undergraduate psychology student is conducting a
(See) You regressed y versus x and obtained the following results.
(See Steps) You regressed y vs. x. After plotting residuals you
(Steps Shown) a. In the table below you have results of Analysis
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Area and Volume of a Cone - MathCracker.com