Aligarh Muslim University (AMU) 2011 M.Sc WildLife Biology Bio-statistics - Question Paper

CODE N0.3340

3

2011-12

M.Sc. (Ill SEMESTER) EXAMINATION (WILDLIFE SCIENCE)

BIO-STATISTICS

(WLM-9013)

Maximum Marks: 70    Duration: Two Hours

Answer all questions.

Internal choice has been indicated.

Marks are indicated against each question.

1. Write short notes on the following:

a)    Types of variables    05

b)    Scales of measurements    05

c)    Accuracy & Precision    07

OR

a)    Data summarization technique    07

b)    Histogram, Bar diagram and Pie chart    05

c)    Sampling universe, sampling unit and sample size    05

2.    Describe salient features of a normal curve. Discuss the    17 properties of parametric and non-parametric statistical

tests.

OR

Write notes on:

a)    Hypothesis testing    05

b)    One tailed and two tailed test    05

c)    Data transformation    07

3.    A Wildlife Biologist collected following data on song    18 duration from four different areas in three time period:

Time Period	Song duration (Seconds)
	Area A	Area B	Area C	Area D
Sunrise	6.7	8.6	10.2	6.5
Noon	3.4	4.3	6.5	2.5
Sunset	6.3	8.3	9.9	7.1

Test the null hypothesis, that there is no difference in song duration between areas in different time period using "Friedman Two-Way Analysis of Variance". The tabular X² Value at .05 significance level is 5.99.

-Z'

4. A Wildlife biologist collected following data on birds:    18

Bill length (mm)	Weight (g)
33.5	51
38.0	59
32.0	49
37.5	54
31.5	50
33.0	55
31.0	48
36.5	53
34.0	52
35.0	57

Test the null hypothesis, that there is no correlation in bill length and weight of bird using "Product Moment Correlation coefficient". Test the significance of correlation coefficient by converting V Value to t value. The tabular t value at 0.01 significance level is 3.355.

Attachment: aligarh-muslim-university--amu--2011-m-sc-wildlife-biology-260-1.pdf

Earning:   Approval pending.