A study was conducted to investigate whether a daytime nap affects your stress level measured by the Kessler Psychological Distress Scale (K10). The K10 is a widely used tool to assess the prevalence and levels of stress. Scores of 30 or higher indicate severe stress. A random sample of participants was surveyed on their daytime nap habit, and their K10 scores were recorded in a file Sleeping,xlex. Download and open this file into Excel. Use Excel to undertake a suitable test to address the research question below. Is the average stress level, measured by the KTO, differ between people who nap and those who do not? Daytime_nap No_daytime_nap Frequency Frequency 18 19 21 23 22 23 24 25 26 27 The K10 score The K10 score Differences 28 26 24 Frequency the K10 score 22 20 Daytime_nap No_daytime_nap the K10 score Answer the following questions by choosing the most correct option or typing the answer: . (1 mark) The most appropriate test for these data is 2. (1 mark) The normality assumption seems reasonable because: A.both K10 scores for people who nap and people who do not nap may be drawn from normal distributions. A.both K10 scores for people who nap and people who do not nap may be drawn from normal distributions. B.the differences between K10 scores for people who nap and people who do not nap may be drawn from a normal distribution. 3. (1 mark] The assumption of equal variance seems reasonable because: A.comparative boxplots suggest the variation in the two populations could be the same. B.comparative boxplots suggest the variation in the two populations is different For the remaining questions you may assume that any relevant assumptions have been met. 4. (2 marks) The alosolute value of the test statistic is equal to (type your answer with 3 dp) 5. (1 mark) The degrees of freedom is equal to (type your answer as an integer) 6. (1 mark) The p-value is larger than 0.05 7. (2 marks) The test shows that the average stress level measured by K10 scores was A. significantly different (greater for people who nap during the day than those who do not). B. significantly different (greater for people who do not nap during the day than those who do nap.) C. not significantly different between people who nap or not.