1. You are interested in the effects of caffeine intake and sleep…

Question 1. You are interested in the effects of caffeine intake and sleep… 1. You are interested in the effects of caffeine intake and sleep deprivation on mental alertness. Ten participants come to the lab on four separate occasions and do a computerized assessment of mental alertness where a higher score indicated better performance. The participants are tested after each of four conditions (1 condition/visit to the lab) and the order of presentation was counterbalanced across participants.•    30 min after drinking 2 cups of decaf coffee with no caffeine and after NOT having slept for 12 hours•    30 min after drinking 2 cups of regular coffee WITH caffeine and after NOT having slept for 12 hours•    30 min after drinking 2 cups of decaf coffee with no caffeine and after having slept for 7 hours•    30 min after drinking 2 cups of regular coffee WITH caffeine and after having slept for 7 hours What type of analysis should be done? Pick one from below Pearson product-moment correlation Two-way between-subjects ANOVA Two-way mixed ANOVA Chi-square goodness-of-fit Chi-square test of independence One-way between-subjects ANOVA Independent-samples t-test Paired-samples t-test Two-way repeated-measures ANOVA One-way repeated-measures ANOVA    2, Looking at the output below, were any of the results significant?Image transcription textOutput ANOVA Summmary Sources55 of MS F p value Caffeine 324.90 1324.90 79.89 <.001 Err... Show more... Show more Yes No   3. What type of data was analyzed? a. Nominal b. Interval or Ratio c. Ordinal   4. Indicate which option(s) below, accurately represent(s) the results. Note: you may have to select more than one answer. a. There was a significant main effect of caffeine intake, F(1,9)=60.828, p<.001. b. There was a significant main effect of sleep deprivation status, F(1,9)=42.224, p<.001. c. There was a significant interaction between caffeine intake x sleep deprivation status, F(1,9)=0.182, p=.680.   5. Look at the graph and the results and select the correct option(s) below. Note: you may have to select more than one answer.Image transcription text90 80 70 60 50 Mental AlertnessScore(+/-SEM) 40 30 20 10 0 2 cupsDecaffinated 2 Cups Regu... Show more... Show morea, Participants that were not sleep deprived performed significantly better than participants that were sleep deprived.b. Participants that drank caffeine performed significantly better than participants that did not drink caffeine.c. Participants that were not sleep deprived did significantly better when drinking caffeine, while participants that were sleep deprived did significantly better when not drinking caffeine.    Math Statistics and Probability STATS 810 Share QuestionEmailCopy link Comments (0)