Question
Section 1 Name the variables used in this analysis and whether they are categorical or continuous. State a research question, null hypothesis, and alternate hypothesis
Section 1
- Name the variables used in this analysis and whether they are categorical or continuous.
- State a research question, null hypothesis, and alternate hypothesis for the analysis of variance (ANOVA).
| Tests of Normality | ||||||
| Kolmogorov-Smirnova | Shapiro-Wilk | |||||
| Statistic | df | Sig. | Statistic | df | Sig. | |
| quiz3 | .140 | 105 | .000 | .935 | 105 | .000 |
| a. Lilliefors Significance Correction |
| Descriptives | ||||||||
| quiz3 | ||||||||
| N | Mean | Std. Deviation | Std. Error | 95% Confidence Interval for Mean | Minimum | Maximum | ||
| Lower Bound | Upper Bound | |||||||
| 1 | 33 | 7.24 | 1.324 | .230 | 6.77 | 7.71 | 5 | 10 |
| 2 | 39 | 6.72 | 1.538 | .246 | 6.22 | 7.22 | 4 | 10 |
| 3 | 33 | 7.82 | 1.976 | .344 | 7.12 | 8.52 | 4 | 10 |
| Total | 105 | 7.23 | 1.677 | .164 | 6.90 | 7.55 | 4 | 10 |
| ANOVA | |||||
| quiz3 | |||||
| Sum of Squares | df | Mean Square | F | Sig. | |
| Between Groups | 21.647 | 2 | 10.824 | 4.076 | .020 |
| Within Groups | 270.867 | 102 | 2.656 | ||
| Total | 292.514 | 104 |
Post Hoc Tests
| Dependent Variable: quiz3 | ||||||
| Tukey HSD | ||||||
| (I) section | (J) section | Mean Difference (I-J) | Std. Error | Sig. | 95% Confidence Interval | |
| Lower Bound | Upper Bound | |||||
| 1 | 2 | .524 | .385 | .365 | -.39 | 1.44 |
| 3 | -.576 | .401 | .327 | -1.53 | .38 | |
| 2 | 1 | -.524 | .385 | .365 | -1.44 | .39 |
| 3 | -1.100* | .385 | .014 | -2.02 | -.18 | |
| 3 | 1 | .576 | .401 | .327 | -.38 | 1.53 |
| 2 | 1.100* | .385 | .014 | .18 | 2.02 | |
| *. The mean difference is significant at the 0.05 level. |
| Descriptives | ||||||||
| quiz3 | ||||||||
| N | Mean | Std. Deviation | Std. Error | 95% Confidence Interval for Mean | Minimum | Maximum | ||
| Lower Bound | Upper Bound | |||||||
| 1 | 33 | 7.24 | 1.324 | .230 | 6.77 | 7.71 | 5 | 10 |
| 2 | 39 | 6.72 | 1.538 | .246 | 6.22 | 7.22 | 4 | 10 |
| 3 | 33 | 7.82 | 1.976 | .344 | 7.12 | 8.52 | 4 | 10 |
| Total | 105 | 7.23 | 1.677 | .164 | 6.90 | 7.55 | 4 | 10 |
| ANOVA | |||||
| quiz3 | |||||
| Sum of Squares | df | Mean Square | F | Sig. | |
| Between Groups | 21.647 | 2 | 10.824 | 4.076 | .020 |
| Within Groups | 270.867 | 102 | 2.656 | ||
| Total | 292.514 | 104 |
Multiple Comparisons | ||||||
| Dependent Variable: quiz3 | ||||||
| Tukey HSD | ||||||
(I) section | (J) section | Mean Difference (I-J) | Std. Error | Sig. | 95% Confidence Interval | |
Lower Bound | Upper Bound | |||||
1 | 2 | .524 | .385 | .365 | -.39 | 1.44 |
3 | -.576 | .401 | .327 | -1.53 | .38 | |
2 | 1 | -.524 | .385 | .365 | -1.44 | .39 |
3 | -1.100* | .385 | .014 | -2.02 | -.18 | |
3 | 1 | .576 | .401 | .327 | -.38 | 1.53 |
2 | 1.100* | .385 | .014 | .18 | 2.02 | |
*. The mean difference is significant at the 0.05 level. |
Homogeneous Subsets
| quiz3 | |||
| Tukey HSDa,b | |||
| section | N | Subset for alpha = 0.05 | |
| 1 | 2 | ||
| 2 | 39 | 6.72 | |
| 1 | 33 | 7.24 | 7.24 |
| 3 | 33 | 7.82 | |
| Sig. | .375 | .308 | |
| Means for groups in homogeneous subsets are displayed. | |||
| a. Uses Harmonic Mean Sample Size = 34.784. | |||
| b. The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed. |
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Quantitative Methods For Business
Authors: David Anderson, Dennis Sweeney, Thomas Williams, Jeffrey Cam
11th Edition
978-0324651812, 324651813, 978-0324651751
