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Thursday, January 26, 2012

Sample Questions for Final Exam

Dear Students


I am uploading a few sample questions (solved) for your help in final exams.


Good luck.


MCQs


Q.1.  Read the following questions carefully. Select the choice that fits best and encircle the alphabet of the correct choice only. There is only one correct choice for each statement. Cutting, duplication will receive no marks.                              20 x 1 = 20

i.                    What will be the mean of 10, 20, 20 and 30?
a) 20                            b) 25                            c) 15                            d) 18

ii.               We have to compare section-I with section-II of 1st year class, for their marks in Mathematics. Which test should be applied?
             a)      Independent Sample T-test                                                b) Paired T-test

iii.                To compare BMI and blood glucose level in a group of diabetic patients, which of the following tests should be applied?
a) Regression                                                               b) Correlation

iv.                The value of Pearson’s coefficient of correlation ranges from:
            a) 0 to 1                                   c) -1 to +1                   d) None of these

v.                  We have to measure the relationship of BMI with age in people of an area, which test will be applied?
a) Correlation              b) ANOVA                 c) T test           d) Chi Square test

vi.                If the test based on a hypothesis give unexpected result, what should be the next step according to the scientific method:
a) Accept hypothesis                                       b) Change hypothesis

Which test should be applied when we want to compare combined effect of dose of medicine and quantity of dietary supplement on the cholesterol level in rats?
          a)      Two-way ANOVA                   b) Regression              c) One-way ANOVA

ii.                  Effect of water quantity on the yield of a crop is to be analyzed, which of the following test should be applied:
          a)      Regression                b) Correlation                   c) One-way ANOVA                

iii.                For comparing a variable (e.g., pH values of water samples) of 3 or more groups we should apply:
          a)      Regression                  b) Correlation                   c) One-way ANOVA

iv.                For making a standard curve, which type of graph is used:
     a) Bar chart                                 b) Pie chart                              c) X-Y chart




Q.2.     Make 1 data set for each of the following statistical tests.                            2 x 2 = 4

a)      Independent sample T-test
            b) Regression


a) Group 1         Group 2
      2                     5
      2.5                  6
      3.8                  6.4
      3                    5
b) Quantity of antibiotic  Bacterial growth
              10 u                     40
              15 u                     21
              20 u                     15
              25 u                     9
              30 u                     0


Q.3.   Explain the use of t-test, two-way ANOVA and correlation with help of 2 examples each.  5      
                                                                                                                       

Tuesday, January 17, 2012

Assignment 3

Dear Students

Topic, marks, weight-age and submission deadline of your assignment 3 are below:

Topic: In experimental design, what are variables or factors, replication and randomization? Explain.
Marks and Weight-age: 30 and 3%.
Submission Deadline: February 10, 2012

Good luck.

Monday, January 16, 2012

Final Examination

Dear Students

Date Sheet of your final examination is announced. Your final examination will be conducted on Monday February 13, 2012. Location will be announced later on this very blog and on the wall of my office well before time. Please be on time.

Pattern & Marks Distribution of Final Examination:


Total Marks = 50
Weight-age = 25%
MCQs = 20
Diagrams / Short questions = 20
Long questions = 2 (5 marks each)

Good luck.

Project in Biostatistics

Dear Students

Your project in BIOL 205 - Biostatistics is due on February 02, 2012. This project accounts for 10 marks and 5% towards your final grade.

There are two topics, which are below:

1. Search any three research articles on "significance of experimental design in biotechnology, biology or environmental science". Read these articles and after making an idea or concept write down an article on the topic above.
2. Think of a research question of your interest / choice. Develop a research hypothesis and design an experiment to test it. Then create a supposed data and analyze it by hypothesis testing techniques and make a report.

Good luck.

Quiz 2

Dear Students

Your quiz 2 will be held on tomorrow, January 17, 2012. Topic include introduction to experimental design and between group and within group experimental designs. Timings and location are 8:00 am and S-433.

Good luck.