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## Statistics

Attempt all the problems

problem1)

(a) What is the significance of hypothesis in research? What are Type I and II errors in Hypothesis Testing?

(b) describe survey method of research and case method of research.

problem2)

(a) With the help of significant scatter diagrams describe negative correlation, positive correlation, and no correlation.

(b) What are the (ranges) numerical values which depict positive correlation, negative correlation and no correlations?

problem3)

(a) Describe various stages in preparation of a report.

(b) Why and how statistical fallacies arise while interpreting the data? Describe with appropriate exs.

problem4)

Differentiate the following:

(a) Big Sample and Small Sample

(b) Correlation and Regression

(c) Nominal Scale and Ordinal Scale

(d) Knowledge and Science

problem5)

Illustrate the following:

(a) Comparison between two things could not be made unless they are really alike.

(b) Point estimate is not one type of estimate.

(c) t-test is the exact test while z-test is an approximate test.

(d) Statistical meaning of ‘bias’ is ‘error.’

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M92454

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