Docstoc

homework

Document Sample
homework Powered By Docstoc
					                               STAT10050 – Continuous Assessment
                               Mid-Term and Homework Assignments



As already announced, homeworks must be stapled together prior to submission. In future any
homeworks not stapled will have marks deducted.



                 Mid Term Exam based on material in chapters 1, 2, 5, 6 –
                        Thursday 27th October 6.00pm – 7.00pm



Homework         Homework to            Questions from STATISTICS by UTTS and HECKARD
Assigned in      be handed up
  Week             at start of
                   lecture in
                     Week

1               2                   1.6, 2.2, 2.4, 2.6, 2.8, 2.10, 2.12, 2.14, 2.18
2               3                   1.12, 5.2, 5.12, 5.14, 5.28, 5.50, 5.56, 5.60, 5.74, 5.80
3               4                   1.14, 1.30, 1.40, 1.44, 2.26, 6.2, 6.8, 6.22, 6.36, 6.54
4               5                   2.58, 2.60, 2.72, 2.92, 2.128 plus additional question below
5               6                   2.28,2.46, 2.70, 2.96, 2.98, 2.106, 2.122, 2.130
6               7                   2.44, 7.8, 7.24, 7.26, 7.40, 7.66, 7.74
7               8                   8.64, 8.66, 8.68, 8.70, 8.72, 8.74, 8.78, 8.114
8               9                   8.14, 8.20, 8.46, 8.50, 8.56, 8.58
9               10                  9.6, 9.10, 9.12,12.2, 12.8
10              11                  9.24, 9.36, 9.62, 12.20, 12.28, 12.44, 12.52
11              12                  13.2, 13.14, 13.16, 13.46, 13.98, 13.102
12               Fri week 12        10.12, 10.14, 10.16, 10.28, 11.26, 11.30, 11.40

Additional Question for Week 4 Homework

The conventional method of measuring the refractive status of an eye involves three quantities:
(1) sphere power, (2) cylinder power, and (3) axis. Optometric researchers studied the variation
in these three measures of refraction (Optometry and Vision Science, June 1995). Twenty-five
successive refractive measurements were obtained on the eyes of over 100 university students.
The cylinder power measurements for the left eye of one particular student (ID #11) are listed in
the table.
0.08 0.06 0.15 0.08 0.12 0.16 1.07 0.17 0.09 0.09 0.20 0.06
0.16 0.12 0.10 0.04 0.17 0.21 0.07 0.09 0.06 0.17 0.07 0.11 0.16
    i. Calculate three measures of central tendency for this data set.
   ii. Calculate three measures of variability for this data set.
  iii. Interpret each of the 6 values you have just computed. Which measures do you recommend
       using to summarise this data set? Why?

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:51
posted:9/21/2012
language:English
pages:1