Page 4 of 13 Course: Psye 2523 sec 02/03 Initials booklets 3A and 3B) Bs and B9
ID: 3324627 • Letter: P
Question
Page 4 of 13 Course: Psye 2523 sec 02/03 Initials booklets 3A and 3B) Bs and B9 in booklet 3 Gf you need more space, label the booklets 3 Answer questions Bs and t satisfaction in seminars is affected by the type of writing boards used. new white boards in East Academic or the chalk boards found in hown? You select 9 Psychology 223 teaching assistants who each have one with a white board and one seminar in a room in with a chalk board. You seminar and ask them to rate their seminar satisfaction on a scale of 0 to 100 with seminar has 16 students registered in it BS You wonder if student Do students prefèr MacKenzie-C in a room survey each higher numbers indicating higher satisfaction. Each who reg following results. ularly attend and are at comparable times during the day and week. You obtain the seminar satisfaction based on tone of board for each teaching assistant Ratings 2 TA 8 White Board Chalk Board 67 78 57 64 75 79 56 68 76 78 78 65 68 79 81 59 69 75 a) What is the Independent Variable? (I mark) answer not shown b) What is the Dependent Variable? (1 mark) answer not shown c) What type of variable is the dependent variable? (1 mark) answer not shown with this study and, in ONE and ONLY ONE sentence, What is the most obvious problem how would you correct it? (3 marks) answer not shown d) ur ignore the problem(s), what is your conclusion about the relationship between studer satisfaction and type writing board in the seminar room? (7 marks) answer is p=.0702 e) Based on your conclusion, w g) To what population does your conclusion apply? (1 mark) answer not shown hat type oferror might you be making?(1 mark)answer not shovExplanation / Answer
(a) Independent variable : "Type of Board uses"
(b) Dependent variable : "Ratings of seminar satisfaction"
(c) The dependent variable is os "Ordinal" type
(d) As, there is no set benchmark for ratings, as we can't tell the difference between a rating of 60 and a rating of 70 quantitatively. We will set some basic benchmark or a set of questionnaire to correct it.
(e) Here if we take white board as 1 and black board as 2.
The difference table is given below
AVerage difference dbar = 3.5556
Standard deviation of difference sd = 3.8442
standard error of difference sed= sd /sqrt(n) = 3.84412/ sqrt(9) = 1.2814
Test statistic
t = dbar /sed = 3.5556/ 1.2816 = 2.7743
p = 2 Pr(t < 2.7743) = 0.0702
(f) We m,ay be making type II error as we failed to reject null hypothesis even if it false.
(g) OUr conclusion apply only to population of teaching assistants who use white or black boards.
White Black Difference 67 78 11 78 78 0 57 65 8 64 68 4 75 79 4 79 81 2 56 59 3 68 69 1 76 75 -1 Average 3.5556 Std. Dev. 3.8442Related Questions
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