Semester Two Mid-Semester Examinations, 2015 STAT1201/1301 Analysis of Scientific Data (Internal Only) THE UNIVERSITY OF QUEENSLAND AUSTRALIA ELABORE AC Venue Seat Number Student Number Family Name This exam paper must not be removed from the venue First Name School of Mathematics & Physics EXAMINATION Semester Two Mid-Semester Examinations, 2015 STAT1201/1301 Analysis of Scientific Data (Internal Only) This paper is for Gatton Campus and St Lucia Campus students. Examination Duration: 60 minutes Reading Time: 10 minutes Exam Conditions: This is a School Examination For Examiner Use Only Question 1 Mark This is a Closed Book Examination - specified materials permitted 2 During reading time - writing is not permitted at all 3 This examination paper will be released to the Library 4 Materials Permitted In The Exam Venue: 5 (No electronic aids are permitted e.g. laptops, phones) Calculators - Casio FX82 series or UQ approved (labelled) An annotated copy of A Portable Introduction to Data Analysis is permitted. Total Materials To Be Supplied To Students: none Instructions To Students: There are 40 marks available on this exam from 5 questions. Write your answers in the spaces provided in this examination paper. The backs of pages may be used for rough working but these will not be marked. The textbook can have any amount of annotation on its pages. Loose sheets of paper or post-it notes are not permitted. Unannotated plastic page tabs are allowed. Page 1 of 10
Semester Two Mid-Semester Examinations, 2015 STAT1201/1301 Analysis of Scientific Data (Internal Only) Question 1 You are a member of a University ethics committee, and the following proposed study is submitted for approval. Researchers intend to test whether pumpkin juice can reduce the harmful effects of ionising radiation in fruit flies. They intend to raise 100 fruit flies which will be divided into two groups, one given access to standard fruit fly feed (grain meal) and one given access to both grain meal and pumpkin juice. They will both be housed in boxes with a chunk of Caesium-137, a radioactive isotope that emits beta and gamma radiation. After ten days the researchers will count the number of surviving fruit flies in each box to see if there is a significant difference in survival rate. Survivors will be ground up for spectroscopic analysis to determine what chemical differences exist between surviving and non-surviving fruit flies. List four important ethical concerns about this proposal in the spaces below. [8 marks] i. ii. iii. 1V. Page 2 of 10
Semester Two Mid-Semester Examinations, 2015 STAT1201/1301 Analysis of Scientific Data (Internal Only) Question 2 a) Draw clear lines to connect each of the following histograms with the corresponding box and whisker plots. [4 marks] 30 25 20 15 ? ? 10 5 0 15 10 ? 5 0 60 40 ? 20 0 25 20 15 ? .. .. 10 5 0 Page 3 of 10