What is the significance of doing research? Why should governments spend taxpayer’s money in doing research?
The government has observed too many accidents happening on the road. You are given the task to design a research project for three years on a related topic. Make a flow chart for the entire research, including timeline.
The government has observed too many kidnappings happening. You are given the task to design a research project for three years on a related topic. Make a flow chart for the entire research, including timeline.
Improve upon this research topic: “Why is the productivity in Japan so much higher than in India?”
What is a pilot survey?
What is ex-post facto research?
You need to test the IQ of students? List the extraneous factors/ variables which may affect your results. Make a research design in the form of before and after study with control.
You need to test the efficiency of a drug? List the extraneous factors/ variables which may affect your results. Make a research design in the form of before and after study with control.
What are the advantages of Latin Square Design?
Make a multiple category scale for the following
Income range
Employment type
A committee wants to test whether candidates score higher than 600 in a certain test. Data is collected for a random samples of 20 candidates. Their scores are as follows: 510 670 480 800 690 530 620 710 670 640 650 780 650 490 800 600 510 700 730 590. It is also known that the population standard deviation is 100. Chose = 0.05. Write, in the form of a hypothesis. Indicate, which test (one tailed/ two tailed) you will use.
From the areas table for the standard normal distribution find the area under the normal curve for
a. 0≤z≤1.21
b. -∞≤z≤1.95
c. -∞≤z≤-1.46
d. -∞≤z≤∞
State how Kerlinger had defined Scientific Research.
Research topic is: ‘How does technology create employment/unemployment?’. What type of research is it? Give reason.
State three major significances of doing research.
Name one scientometric measure used to access the quality of a Journal and one measure to access the quality of a researcher.
What should be done with the missing / outlier data? Give Reasons.
How is validity of an instrument different from reliability?
What is Enquiry mode of research? What are the sub classification of Enquiry mode of research? Give examples.
State five major considerations that a researcher should address for selecting a research problem.
A hypothesis is made: ‘Adding fluoride to a toothpaste protects against cavities’. What type of hypothesis is it? Sate the outcome of this research in which we will say that we have committed a) type 1 type of error, b) type 2 type of error.
What is Objective type of research? What are the sub classification of Objective type of research? Give examples.
Name the scientometric measure given by Eugene Garfield. How is it calculated? What are the advantages and disadvantages of using this measure?
A sample of 11 circuits from a large normal population has a mean resistance of 2.20 ohms. Population standard deviation is not known. Sample standard deviation ( s1 ) is 0.35 ohms. Determine a 95% confidence interval for the true mean resistance of the population.
A researcher wishes to learn if a particular chemical is toxic to a certain species of beetle. She obtained beetles and divided them into two groups. She then fed one group of beetles with the chemical and used the second group as a control. After 2 weeks, she counted the number of eggs produced by each beetle in each group. The mean egg count for each group of beetles is below.
Group 1 Group 2
fed chemical not fed chemical (control)
33 35
31 42
34 43
38 41
32
28
Test her hypothesis and report the result.
A researcher wishes to learn whether the pH of soil affects seed germination of a particular herb found in forest. She filled 10 flower pots with acid soil ( pH 5.5) and ten flower pots with neutral soil ( pH 7.0) and planted 100 seeds in each pot. The mean number of seeds that germinated in each type of soil is below.
Acid Soil (pH 5.5) Neutral Soil ( pH 7.0)
42 43
45 51
40 56
37 40
41 32
41 54
48 51
50 55
45 50
46 48
Test the following hypothesis: The mean germination at pH 5.5 is different than the mean germination at pH 7.0
From a random sample of 36 New Delhi civil service personnel, the mean age and the sample standard deviation were found to be 40 years and 4.5 years respectively. Construct a 95% confidence interval for the mean age of civil servants in New Delhi.
What are the benefits of ISO international standards?
A certain random variable follows exponential distribution. We have chosen 50 samples randomly 50 times and calculated their mean. What distribution will the means follow?
What is the advantage of DOI over a URL?
What is the primary difference between organizations like ISO and ITU? Why are they needed?
What are the advantages of using Latex over Microsoft word for preparing the manuscript of a research paper?
A survey of daily travel time had these results (in minutes):26, 33, 65, 28, 34, 55, 25, 44, 50, 36, 26, 37, 43, 62, 35, 38, 45, 32, 28, 34. Convert the Gaussian distribution to a Normal distribution. Find the 95% range.
What are ISO standards? How are the related to or different from Research Papers? Give two examples of ISO standards.
How is Time Series Analysis useful in prediction? How is it different from extrapolation? Explain Secular trend and Short time oscillations with an example.
The specimen of copper wires drawn from a large lot have the following breaking strength (in kg. weight):578, 572, 570, 568, 572, 578, 570, 572, 596, 544
Test (using Student’s t-statistic) whether the mean breaking strength of the lot may be taken to be 578 weight (Test at 5 per cent level of significance).
Explain the meaning of p value with the help of Gaussian Normal distribution. Also explain how is a double sided test different form a one sided test with the curve. Give example.
We run the risk of committing Type 1 error by rejecting H0 and run the risk of committing Type II error by accepting H0. How? Give example.
