1. Identify the mean, median, and mode for the following data set:
| Pool 1D |
| 20 |
| 21 |
| 23 |
| 24 |
| 25 |
| 25 |
| 25 |
| 25 |
| 25 |
| 26 |
| 27 |
2. Find the mean, median and mode of these numbers: 5, 4, 2, 1, 6, 5, 3, 2, 4, 2, 5, 5, 2 Round all answers to the hundreth place.
| 3. Identify the mean, median, and mode for the following data set: |
4.
| Please interpret the results and write up the results according to the handbook for the following scenario. |
| Is there a relationship between GPA and ACT composite scores? A student ran a correlation test and had the following results: |
| GPA |
ACT |
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| 2.5 |
17 |
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SUMMARY OUTPUT |
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| 2.6 |
14 |
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| 2.7 |
18 |
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Regression Statistics |
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| 3.1 |
19 |
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Multiple R |
0.83448 |
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| 3.2 |
20 |
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R Square |
0.696356 |
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| 3 |
20 |
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Adjusted R Square |
0.635627 |
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| 3.5 |
21 |
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Standard Error |
0.217244 |
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Observations |
7 |
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ANOVA |
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df |
SS |
MS |
F |
Significance F |
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Regression |
1 |
0.541168 |
0.541168 |
11.46666 |
0.019541 |
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Residual |
5 |
0.235975 |
0.047195 |
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Total |
6 |
0.777143 |
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Coefficients |
Standard Error |
t Stat |
P-value |
Lower 95% |
Upper 95% |
Lower 95.0% |
Upper 95.0% |
| |
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Intercept |
0.608051 |
0.694369 |
0.875689 |
0.421268 |
-1.17688 |
2.392983 |
-1.17688 |
2.392983 |
| |
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|
ACT |
0.126695 |
0.037415 |
3.386246 |
0.019541 |
0.030518 |
0.222872 |
0.030518 |
0.222872 |
5.
| Please interpret the results and write up the results according to the handbook for the following scenario. |
| Is there a relationship between time spent studying and quiz scores? A student ran a correlation test and had the following results: |
| Time |
Score |
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SUMMARY OUTPUT |
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| 1 |
70 |
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| 1 |
80 |
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Regression Statistics |
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| 1 |
80 |
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Multiple R |
0.781071 |
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| 2 |
80 |
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R Square |
0.610071 |
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| 2 |
85 |
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Adjusted R Square |
0.532086 |
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| 3 |
85 |
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Standard Error |
0.615457 |
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| 3 |
90 |
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Observations |
7 |
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ANOVA |
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df |
SS |
MS |
F |
Significance F |
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Regression |
1 |
2.963203 |
2.963203 |
7.822857 |
0.038131 |
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Residual |
5 |
1.893939 |
0.378788 |
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Total |
6 |
4.857143 |
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Coefficients |
Standard Error |
t Stat |
P-value |
Lower 95% |
Upper 95% |
Lower 95.0% |
Upper 95.0% |
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Intercept |
-7.27273 |
3.272517 |
-2.22237 |
0.076899 |
-15.685 |
1.139545 |
-15.685 |
1.139545 |
| |
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Score |
0.112121 |
0.040087 |
2.796937 |
0.038131 |
0.009074 |
0.215168 |
0.009074 |
0.215168 |
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