OU BSc Computer Science 2021 Important Question Bank || Osmania University (Important Questions)
Subject Title: Statistical Inference
Year: II Semester: IV Updated on: 25.03
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Unit - I:
- Define simple and composite hypothesis
- Explain types of errors
- Define one-tailed and two-tailed test.
- Define Null, Alternative Hypothesis and Critical region
- Define LOS, Power of a test.
- State and prove Neyman and Pearson Lemma theorem
- Using NP-Lemma, obtain best critical region for Binomial, Poisson, Normal and Exponential distribution.
- Define randomized and non-randomized test.
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Unit - II:
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- Explain the procedure for testing of hypothesis.
- Explain the procedure for significance test for single mean and difference of means. And problems
- Explain the procedure for significance test for single proportion and difference of proportions. And problems.
- Procedure for difference of standard deviation and problems
- Explain the confidence limits of single proportion.
- State the applications of Fishers Z-transformation
- Define Fishers Z-transformation
- Definition of order statistics.
- Statement of order statistics.
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Unit - III:
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- Define Chi square —test for population variance.
- Define Chi square —test for population variance
- Define the confidence limits for p in single mean.
- Explain the procedure for observed correlation coefficient. problems
- Chi square—test for independence of attributes Procedure and problems
- Procedure t- test for single mean and problems.
- Procedure t — test for difference of means and problems
- Procedure for Paired t — test and problems
- F —test for equality of population variance and problems
- Yates Correction for continuity for 2x2 table
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Unit - IV:
- Define Non — Parametric tests with examples.
- Comparision of Parametric and Non Parametric tests.
- Explain types of Scales with examples.
- Explain advantages and disadvantages of non parametric tests.
- Explain Wilcoxon-man-Whitney U-test and problems.
- Explain Median test.
- Explain procedure for Wilcoxon Signed —rank test.
- Explain test for Randomness and problems.
- Explain Wald- Wolfowitz Run test and problems.
- Define Central Limit theorem
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