Time spent on Facebook per week Paired samples t-test Descriptives Std. Error 1.473 Statistic 180.27 Paired Samples Statistics Time spent Mean on Facebook 96% Confidence Lower Interns for Meen Std. Std. Error ¡In mins por Bound 177.38 Mean N Deviation Mean Upper 183.16 Bound SelfReported 161.6667 162.5833 12 12 9.86577 2.84800 7.37882 2.13008 Pair 1 Actual 5% Trimmed Mean 180.71 Median 185.00 Variance 1324.332 Paired Samples Test Paired Differences Std. Deviation 36.391 Minimum 87 Maximum 27 N - 610 95% Confidence Interval of the Difference Sig. Percentiles Std. Std. Error Mear Lower Upper t df (2-tailed) Percentiles Mean Deviation 5 10 25 50 75 90 95 SelfReported Actual Weighted Time spent on Average Facebook [in Pair 1 .91667 5.12495 1.47945 -4.17291 2.33957 -620 11 .548 103.00 135.00 168.00 185.00 198.00 213.80 248.00 mins per week] Definition 1) Time spent on Tukey's Hinges Facebook [in Paired samples t-test 168.00 185.00 198.00 mins nar wnak! Time spent on Facebook per week Researchers hypothesised that boys' self-reported heights are higher than their actual measured heights [over- estimate]. Report - Metric variable ... The distribution of Time spent on Facebook per week for a random sample of 610 Australians is displayed in Figure 2. The distribution is approximately symmetric, with an average of 180.27 minutes [s = 36.39 minutes] spent on Facebook per week. Typically, the average time spent on Facebook per week was between 168.00 minutes and 198.00 minutes, with half of the time [in minutes] spent on Facebook per week falling within this range. In a random sample of 12 boys aged between 12 and 16 years, on average, the self reported heights (x = 161.67cm, s = 9.87cm) were in fact lower than their actual measured heights (x = 162.58cm, s = 7.38cm). However, a paired samples t- test shows that this difference in mean height ( *= = 0.92cm, sd= 5.12cm) is not significant, /(11) = 0.62, p = . 548. The 95% confidence interval indicates that, on average, boys' self-reported heights are between 4.17cm less and 2.34cm more than their actual measured heights. There is insufficient evidence to suggest that boys' self- reported heights differ from their actual measured heights. Note: A histogram would be included here [might think about 'binning' options / scale ... ] Time spent on Facebook per week Binomial test - preferred Facebook function Binomial Test Exact Sig. (1- tailed) Observed Prop. N Test Prop. Category .44 .56 .55 .002ª Which Group 1 Facebook Message 88 function do you prefer more Total Group 2 Facebook Timeline 110 198 1.00 a. Alternative hypothesis states that the proportion of cases in the first group < 55. One-Sample Statistics N Mean Std. Deviation Std. Error Mean Time spent on Facebook [in mins per week] 610 180.27 36.391 1.473 One-Sample Test Enter the sample proportion 0.44 Enter the sample size 198 Lower Bound Upper Bound 0.51 t cif Test Value = 280 95% Confidence Interval of the Difference Lower Sig. (2- tailed) Mean Difference Upper 95% Confidence Interval 0.37