ISS (Statistical Services) Statistics Paper III: Questions 69 - 76 of 96
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Question number: 69
» Econometrics » Prediction and Simultaneous Confidence Intervals
Appeared in Year: 2012
Write in Short
Discuss forecasting accuracy and Theil’s U coefficient.
Question number: 70
» Applied Statistics » Index Numbers » Income Distribution-Pareto and Engel Curves
Appeared in Year: 2012
Write in Short
Using curves of concentration, discuss the formulation of the problem of distribution of income.
Question number: 71
» Econometrics » Autoregressive Linear Regression
Appeared in Year: 2012
Write in Short
Obtain the general solution of first-order auto-regression model.
Question number: 72
» Applied Statistics » Time Series Analysis » Discrete Parameter Stochastic Process
Appeared in Year: 2013
Describe in Detail
Discuss the relevance of variate difference method in time series analysis data. Show that
Explanation
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Question number: 73
» Sampling Techniques » Simple Random Sampling and Systematic Sampling
Appeared in Year: 2013
Describe in Detail
Explain circular systematic sampling. Show that minimum value of ρ is , when , where ρis intraclass correlation and is the sample mean.
Explanation
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Question number: 74
» Sampling Techniques » Probability Sampling or Random Sampling
Appeared in Year: 2012
Write in Short
Obtain an unbiased estimator of the gain due to PPSWR sampling as compared to SRSWR.
Question number: 75
» Econometrics » Autoregressive Linear Regression
Appeared in Year: 2013
Describe in Detail
Obtain the complementary function and particular integral of first order regressive model. Show that is a moving average of random elements with weights,
Explanation
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Question number: 76
» Sampling Techniques » Simple Random Sampling and Sampling With Probability Proportional to Size
Appeared in Year: 2013
Describe in Detail
In simple random sampling without replacement (SRSWOR), the sample mean is an unbiased estimator of population mean . Obtain the variance of the estimator of the population total Y.
Explanation
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