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PSYC 3000 - Statistics ANOVAs Worksheet Complete this worksheet. You will need these answers for Individual Assignment #9. 1. A researcher is interested in the
PSYC 3000 - Statistics ANOVAs Worksheet Complete this worksheet. You will need these answers for Individual Assignment #9. 1. A researcher is interested in the effect of music on memory for words. He recruits a sample of students and assigns them to one of three different types of music - country, pop, and emo. He has them listen to the assigned music through headphones while they are shown a list of words. At the end of a given amount of time, they have to type of the words into a GoogleDoc. The words are checked against the words given to be scored for accuracy. The scores are in the table below - note that each score represents one person: Country Music Pop Music Emo Tunes 3 9 8 N U W / 9 N NUI 9 The research finds that the SST is 104.88 and the SSw is 16.74. Using that information and the information in the chart above. Complete the ANOVA chart below - you will need all the answers to complete the Individual Assignment #8 quiz. Source SS df MS F Between Within 16.74 Total 104.88 . Now, using the degrees of freedom you found and the F-critical chart, find the F-critical to be used for comparison: Given the F-critical that you found, is there a statistically significant difference in these conditions - yes or no? 2. SPSS Interpretation: Use the study blurb below and the image of the SPSS output to answer the following questions: You are a researcher interested in the effects of distraction on task performance. You recruit participants and assign them to one of three groups. Group 1 had participants listen to loud music while completing a logic puzzle. Group 2 had participants complete the logic puzzle in a room with a television that remained constantly which was tuned to CNN. Group 3 had participants complete the puzzle in a quiet room. All participants were timed on how quickly they completed the puzzle in minutes. The researchers hypothesized that the participants in the quiet room would complete the puzz the fastest. You plug your data into SPSS and run a one-way ANOVA. Here are the results:PSYC 3000 - Statistics ANOVAs Worksheet ANOVA Minutes Sum of Squares Mean Square Sig Between Groups 3972.240 1986.120 3.315 .042 Within Groups 43132.080 72 599.057 Total 47104.320 74 a. How many participants were there in the whole study? b. How many conditions are there in this study? C. What is the correct F-ratio for this data? d. When you report this information in a writeup, which two degrees of freedom would you use?: e. Yes or No, is there a statistically significant difference between these conditions? You then run a Tukey's Post-Hoc test. The results of that are below: Multiple Comparisons Minutes Tukey HSD 95% Confidence Interval Mean Difference (1- (1) Groups (J) Groups Std. Error Sig Lower Bound Upper Bound 2 -3.600 0.923 .862 -20.17 12.97 W 13.32 6.923 .139 -3.25 29.89 1 6.923 862 12.97 20.17 2 1.600 w 16.920' 6.923 .044 .35 33.49 3.25 13 1 13.320 6.923 .139 -29.89 -16.920" 6.92 044 -33.49 - 35 *. The mean difference is significant at the 0.05 level. f. There is only one statistically significant comparison. Which two groups are different
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