Observations
Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the recording of
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The nutrition score of 8 males and 12 girl students of M.Sc. (DFSM) programme is given
Here with:
Males: 10, 12, 13, 10, 14, 15, 10, 12
Females: 08, 12, 16, 14, 15, 12, 13, 15, 08, 13, 10, 09
Based on the data given herewith:
i) Calculate the standard error of the difference between the means of the two groups.
ii) Test the significance of the difference between the mean nutrition score of males and females at 0.05 level of significance.
List the various types of tools available for data collection while undertaking research.
What do you understand by formulating a hypothesis? Briefly discuss the different forms of hypothesis.
Observations
What are the points that you will keep in mind while deciding the sample size for a study? Give one simple formula you would use for sample size determination.
Give below is the haemoglobin level recorded for 12 subjects in a community study:
Calculate the mean, standard deviation and variance for the haemoglobin levels reported above.
Analytic study- Descriptive study