7. A consumer psychologist wishes to determine whether playingmusic increases sales at a local department store. To this end, thepsychologist has the owner play either no music, soft rock, orclassical music and notes the sales for 21 people (7 in each) underthese three conditions. The dependent variable is dollars spent pershopper. The table below contains the data from this experiment.Perform a one-way ANOVA to address the consumer psychologist’sresearch question.
No Music | Soft Rock | Classical |
119 | 68 | 85 |
123 | 31 | 67 |
157 | 88 | 55 |
198 | 59 | 99 |
188 | 67 | 63 |
146 | 71 | 58 |
173 | 87 | 51 |
Calculate the group means and grand mean and put your answers inthe spaces provided.
No Music_____ Soft Rock_____ Classical_____
Grand Mean_____
8. Please write the null hypothesis for this analysis in bothequation and written form.
9. Please write the research hypothesis for this analysis inboth equation and written form.
10. Fill in the source table below based on yourcalculations.
Source | SS | df | MS | F |
Between-Groups | | | | |
Within-Groups | | | | |
Total | | | | |
11. Researchers were interested in how age is related to alcoholconsumption. As such, they conducted a study dividing 150 subjectsinto 5 age groups and looking for average differences in alcoholconsumption measured as drinking days per month. Sum of squarestotal is 1341. The authors of the study reported effect sizeeta-squared of .51. Find the value of the F-ratio.
