A large accounting firm wants to know if their employees are more…

Question Answered step-by-step A large accounting firm wants to know if their employees are more… A large accounting firm wants to know if their employees are more alert in the morning or afternoon.  To test this, you devise reaction-time task. On each trial of the task, participants see an object on the screen and press the space bar if the object is an animal. If the object is not an animal, they do not respond. You are interested in how quickly, on average, participants respond that the picture is an animal. To determine whether the time of day makes a difference to employees’ alertness, you randomly select 40 employees from the company. Each employees completes the test twice, once in the morning and then a second time in the afternoon. You compare their mean reaction times at each time of day. If there is a difference between their reaction times, you can conclude that they are more alert at one time of day than the other.   IDSexAgeRTMorningRTAfternoonIDSexAgeRTMorningRTAfternoon1F64483 21F226306812M4365060722M374826083F3241750023M644644984M2950158424F285344255F3957165825M545545026M3150272626F644615157M5661849327M555627058F5649867928M305875379M2545664029F3854243110F2956352630M3145371411F3453544631F5460759012F3150856132F3959450813M1956840233M3151647414M6451347134M6056952315F3755567135F3953857216M3656355536M28654 17M6342955637F4951158418F2059468038F4948862519M4355661739M4056666220F4248041140F49546734 (1) Write results section (“draft answer”). 2 marks for this “working out” (2) What is the name of the statistical analysis you used? 1 mark (3) Was there any missing data? If so, what did you about it? 1 mark (4) What is the standard deviation of the reaction time scores in the morning and in the afternoon?  1 mark   Morning =   Afternoon  =    (5) Which (if any) participants were outliers? (Provide their ID number, or write “no outlier” if you didn’t identify anyone. Check for outliers separately for each time of day).  2 marks (6) Was the assumption of normality met? (Yes/No/Not applicable). 1 mark Morning:   Afternoon:    (7) Was the assumption of homogeneity of variance met? (Yes/No/Not applicable). 1 mark Morning:   Afternoon:  (8) What were the degrees of freedom for the test statistic? (if applicable).    2 marks (9) What was the value of the test statistic?  2 marks (10) Were there any significant differences between the reaction times in the morning versus the afternoon?  1 mark (11) If there was a statistical difference found, which time of day showed the slowest reaction time? (write “Not applicable” if no differences were found in Question 10). 1 mark  TASK 2 Circle the number next to the statement which most accurately summarises the research findings. 2 marks (1) Reaction times were longer in the afternoon than in the morning. (2) Reaction times were shorter in the afternoon than in the morning.(3) There was no significant difference between the mean reaction time in the morning versus the afternoon.(4) Not enough information provided to determine an answer.TASK 3You’ve mistakenly allowed an obvious design flaw to potentially affect the validity of your results.  What is it?  (write a short phrase or simple sentence only; for example, “lack of reliability” or “experimenter effect”). 3 marks  Math Statistics and Probability PSYCHOLOGY 1711 Share QuestionEmailCopy link Comments (0)