Question: Remember that X=5 This is the chart I completed. this info should be correct. If not feel free to check over. Participant X Y XY
Remember that X=5
- This is the chart I completed. this info should be correct. If not feel free to check over.
| Participant | X | Y | XY | X^2 | Y^2 |
| 1 | 3 | 1 | 3 | 9 | 1 |
| 2 | 2 | 1 | 2 | 4 | 1 |
| 3 | 5 | 1 | 5 | 25 | 1 |
| 4 | 7 | 4 | 28 | 49 | 16 |
| 5 | 4 | 7 | 28 | 16 | 49 |
| 6 | 5 | 2 | 10 | 25 | 4 |
| 7 | 5 | 3 | 15 | 25 | 9 |
| 8 | 3 | 2 | 6 | 9 | 4 |
| 9 | 9 | 2 | 18 | 81 | 4 |
| 10 | 6 | 4 | 24 | 36 | 16 |
| 11 | 6 | 4 | 24 | 36 | 16 |
| 12 | 8 | 5 | 40 | 64 | 25 |
| 13 | 5 | 5 | 25 | 25 | 25 |
| 14 | 5 | 3 | 15 | 25 | 9 |
| 15 | 5 | 1 | 5 | 25 | 1 |
| 16 | 7 | 2 | 14 | 49 | 4 |
| 17 | 5 | 4 | 20 | 25 | 16 |
| 18 | 2 | 5 | 10 | 4 | 25 |
| 19 | 6 | 4 | 24 | 36 | 16 |
| 20 | 8 | 7 | 56 | 64 | 49 |
| 21 | 5 | 3 | 15 | 25 | 9 |
| 22 | 10 | 6 | 60 | 100 | 36 |
| Sums | 121 | 76 | 447 | 757 | 336 |
2. Show calculation for r and write a sentence with regards to its meaning with the given values.
3.State hypotheses, show calculation for t, draw and shade the curve, and make decision about the null hypothesis.
4. Show work to calculate a and b and the equation of best fit it produces. Include the scatterplot with the matching equation from Excel.
5. Determine an appropriate x value and use the equation from question 4 to predict the y-value.
6. Show work to calculate r^2 and discuss its meaning with regards to the problem.
7. Show work to calculate Sest.
8.Show work to find the 95% prediction interval when the x-value from question 4 is used. Please state the interval and confidence in sentence format.
9. What is the findings of this research? How valid are they? What still needs to be studied?
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