Social, cultural, economic, legal and political differences among nations affect international business

1

FAMILY NAME…………....……………………

This question paper must be returned. Candidates are not OTHER NAMES……………………………….... permitted to remove any part of it from the examination room. STUDENT NUMBER…………………..………..

MID-YEAR EXAMINATIONS 2005

Unit: STAT170 - Introductory Statistics - I1/X1 Date: Wednesday 15th June 9.20 am Time Allowed: Three (3) hours plus 10 minutes reading time Total Number of Questions: Nine (9) in 15 pages

BOOKLET A Instructions: Please print your name and student number on both booklets. Answers to all questions should be done in the spaces provided in Booklet A. The reverse sides may be used for rough working. The total marks for each question are shown in brackets next to the question number. Statistical tables and formulae are presented in Booklet B. Materials permitted: Electronic calculators may be used but must not be text returnable. Dictionaries are not permitted. Students may take in one A4 sheet of paper hand written on one side only. This sheet must be handed in with your examination paper by placing it inside Booklet A.

Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Total

6 18 14 30 9 15 10 8 10 120

Please note that only brief solutions are provided for some parts of

this exam paper

2

FEV (forced expiratory volume) is the volume of air that can be exhaled after taking a deep breath and is an important measure of pulmonary (lung) function. FEV1 is the forced expiratory volume exhaled in the first second. Researchers surveyed 507 Australian children aged 8 -16 to determine whether they were smokers or non-smokers. Among these, 59 children reported that they were current smokers. These 59 children were selected for a study of lung function using FEV. Another 59 children were selected randomly from those who reported being non-smokers and these too were included...