Assignment Statistics

Topics: Random variable, Normal distribution, Probability distribution Pages: 5 (1035 words) Published: May 1, 2013
UNIVERSITI UTARA MALAYSIA
COLLEGE OF ARTS AND SCIENCES
SCHOOL OF QUANTITATIVE SCIENCES

GROUP ASSIGNMENT
SQQS1013 ELEMENTARY STATISTICS
2nd SEMESTER SESSION 2012/2013

INSTRUCTIONS:
1. Five (5) persons in a group.
2. Answer ALL questions and show all your calculations clearly. 3. Report must be typewritten using A4 paper.
4. Every question and answers must be written on a new page. 5. The front cover for the report is as in Appendix 1. 6. Total marks: 90.
7. Evaluation of the report will be as follows:
• Front cover, table of contents, references, font, etc – 10 marks • Answers to all 4 questions – 80 marks. 8. Due date: 9 May 2013
_________________________________________________________________________________

QUESTION 1 (15 MARKS)

As a member of the marketing team at an Internet music site, you want to understand your customer preferences when visiting your website. You are interested to know their choice of search engine and how many hours they spend in a week browsing the website. A survey was conducted on 30 visitors to the site and the information collected is recorded in TABLE 1 below. TABLE 1

| |Gender |Age |Search Engine |Time spend per week (in | | | | | |hours) | |1 |Male |16 |Google |25.4 | |2 |Male |21 |Google |20.4 | |3 |Female |14 |Direct |21.9 | |4 |Male |30 |Yahoo |15.7 | |5 |Female |28 |Google |27.6 | |6 |Female |15 |Direct |22.5 | |7 |Female |18 |Google |20.9 | |8 |Male |14 |SnapLink |18.0 | |9 |Female |22 |Google |34.5 | |10 |Male |14 |MSN |29.8 | |11 |Male |15 |Google |8.5 | |12 |Female |29 |Yahoo |11.9 | |13 |Female |35 |Google |29.2 | |14 |Male |17 |Yahoo |26.5 | |15 |Female |20 |Yahoo |31.8 | |16 |Male |17 |MSN |19.0 | |17 |Male |28 |Direct |18.0 | |18 |Female |26 |Google |15.3 | |19 |Male |19 |Direct |10.8 | |20 |Female |18 |SnapLink |9.2 | |21 |Female |21 |MSN |41.0 | |22 |Male |20 |Yahoo |10.8 | |23 |Female...
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