Statistic Analysis - Essay Example

Analysis Before proceeding to the test of hypotheses, the descriptive statistics along with the mean, SD, SE are present in the following table. Table 1: Table showing the Descriptive Statistics for each group Variable N Mean SD SE 95% Confidence Interval for Mean Min. Max. Lower Bound Upper Bound Control 10 17.80 1.687 .533 16.59 19.01 15 21 Film 10 24.80 1.874 .593 23.46 26.14 22 28 Modelling 10 21.00 1.700 .537 19.78 22.22 19 24 Desensitisation 10 27.10 3.107 .983 24.88 29.32 22 32 Total 40 22.68 4.166 .659 21.34 24.01 15 32 From the above table (table 1) it is observed that control group has the least snake approach response with mean 17.8 whereas the desensitization group possesses the highest snake approach response with mean score 27.1 followed by Film watching group with 24.8 as mean score and Modelling group with 21.0 as mean score. After the descriptive statistics, we perform omnibus ANOVA to compare all the groups in one table. Null Hypothesis H0: There is no significant difference in the mean approach score between all the groups under consideration. In otherwords, all the groups have the same (equal) approach towards snake. ?1=?2=?3=?4. Alternative Hypothesis H1: There is a significant difference in the mean approach score between all the groups under consideration. In otherwords, all the groups do not have the same (equal) approach towards snake. ?1#?2#?3#?4. Level of Significance: 5% level or ?=0.05. Test Statistic: It is described in the following ANOVA. Table 2: Table describing ANOVA Source of variation Sum of Squares df Mean Square F Sig. Between Groups 506.675 3 168.892 35.744 0.000 Within Groups 170.100 36 4.725 Total 676.775 39 Interpretation: Since the F value is highly significant, (P=0.0000.05, we accept the null hypothesis H01 and conclude that the participants in the desensitization group have on par approach in handling live snakes with that of participants in the film group. On the other hand, we reject the null hypothesis H02 and accept the alternative hypothesis H12 and conclude that there is a highly significant difference in the mean scores between desensitization and modeling group. Desensitization group approach snake far better than modeling group. III. Comparison between modeling group and film group Null Hypothesis H0: The participants in the modelling group will approach a live snake more than the participants in the film group. Alternative Hypothesis H1: The participants in the modelling group will approach a live snake less than participants in the film group. Level of Significance: 5% level or ?=0.05. Interpretation: From the above table-3, since P=0.002 Read More