FEBRUARY 2018 Sub. Code: 2317
BACHELOR IN AUDIOLOGY SPEECH LANGUAGE PATHOLOGY
SECOND YEAR
PAPER VII BASIC STATISTICS AND SCIENTIFIC ENQUIRY IN
AUDIOLOGY AND SPEECH LANGUAGE PATHOLOGY
Q.P. Code: 802317
Time: Three Hours Maximum: 100 Marks
Answer all questions
I. Elaborate on: x 10 30)
1. Define the probability and non-probability sample techniques.
2. Write in detail about Ex-post facto research design with example.
3. A study was performed comparing the bone formation of individuals undergoing a
new therapy and conventional therapy. Test whether the bone formation rate is
different among the two groups at level of significance? (tval(30df)=2.04)
Conventional therapy
mean±sd
New therapy
mean±sd
Bone-formation rate 33±16 95±32
sd standard deviation
II. Write notes on: x 5 40)
1. Measurement scale.
2. Explain secondary data with example.
3. Find the mean, median and mode of the following data
24, 28, 20, 28, 36, 37, 36, 50, 80, 28
4. Correlation and its types.
5. Advantage and disadvantage of non-parametric test.
6. Explain the concept of standard error.
7. Concept of behavioural measures with example.
8. Normal distribution and its properties.
III. Short answers on: (10 x 3 30)
1. Definition of statistics.
2. Define mean, median and mode.
3. Null and alternative hypothesis.
4. Uses of F-test.
5. Conditional probability.
6. One-sided test with example.
7. How to construct a scatterplot with example?
8. Define z-score.
9. Formulation of hypothesis.
10. Advantage and disadvantages of sampling.