Voluntary Statistics: Jigsaw Puzzles - Essay Example

The three assumptions of the t-test for Independent Samples are met. The independent variable (age group) represents two unique groups as 6-year-olds and 8-year-olds. The dependent variable is measured using an interval scale. The variances of the two groups (6-year-olds and 8-year-olds) solution time are equal that is confirmed by the Levenes Test for Equality of Variances, F (24, 24) = 1.784, p = .188. The t-statistic and its associated p- (Sig.) value indicate whether to accept or reject the null hypothesis.

In this case t(48) = 3.96, p < .001. Therefore, reject the null hypothesis. There was a significant effect of age on solution time of jigsaw puzzles, t(48) = 3.96, p < .001, with 6-year-olds children’s solution times for jigsaw puzzles, was higher than 8 years olds children’s solution times for jigsaw puzzles.The results of the analysis are t(48) = 3.96, p < .001. Since the p-value is less than .05, we reject the null hypothesis of no differences between the means of the solution times for jigsaw puzzles for two age groups. The difference is statistically significant.