Hi,

I need your help,

Thank you !!

A researcher is looking at whether social media usage is a factor in how much sleep a person gets. The participants are divided into three groups (low, median and high) based on their social media usage. 6 people were in the Low social media usage group. 7 were in the Medium group and 8 in the High usage group. Over a period of one week each participant recorded the number of hours of sleep and then the average for the one week period was calculated for each participant. The results of the ANOVA are below: Groups Number Average Number of in Group Hours of Sleep per Night Low 6 8.0 Medium 7 7.4 High 5.9 Part 1 (2 marks): Calculate the mean number of hours of sleep per night for the 21 people: Part 2 (5 marks): Complete the ANOVA table. Use a 5% significance level. Source of Variation Sum of Df Mean Squares Square Ftest P-value Ferit Between Groups 0.0318 Within Groups 36 Total 52.8 20 Write down the your answers on a separate piece of paper. SSB: DFB: DfW: MSB:MSB: MSW: F-test: F-crit: Part 3 (5 marks): Is there enough evidence to conclude there are significant differences in the mean number of hours of sleep between the three groups? Test at the 5% level of significance. Ho: HA Apply a Rule + Make a Decision Conclusion. A. Yes, there is enough evidence to conclude there are significant differences in the mean number of hours of sleep between the three groups. B. No, there is NOT evidence to conclude there are significant differences in the mean number of hours of sleep between the three groups. Write down the LETTER of the correct