Describe what probability proportional to size sampling is and why it is used. (b) At a...

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Describe what probability proportional to size sampling is and why it is used. (b) At a nursery there are 10 plots, plot i has M; seedlings for a total of 800 seedlings: Primary sampling cluster (plot) 1 M₁ 2 3 4 5 6 7 8 9 10 56 82 73 144 90 80 58 69 104 44 A sample of 5 plots should be drawn (without replacement) with probability proportional to M₁. Use the cumulative-size method to determine which plots should be included in the sample. Use the following numbers obtained from a random number table: 67515 75107 61196 09385 83552 83744 (6) (c) Suppose that we sample 4 plots to obtain the total number of a certain subspecies of the seedlings in plot i with the following data: Plot 1 4 7 10 Number of subspecies 27 69 17 30 Estimate the population total of the subspecies and the standard error of this estimate. (6) Describe what probability proportional to size sampling is and why it is used. (b) At a nursery there are 10 plots, plot i has M; seedlings for a total of 800 seedlings: Primary sampling cluster (plot) 1 M₁ 2 3 4 5 6 7 8 9 10 56 82 73 144 90 80 58 69 104 44 A sample of 5 plots should be drawn (without replacement) with probability proportional to M₁. Use the cumulative-size method to determine which plots should be included in the sample. Use the following numbers obtained from a random number table: 67515 75107 61196 09385 83552 83744 (6) (c) Suppose that we sample 4 plots to obtain the total number of a certain subspecies of the seedlings in plot i with the following data: Plot 1 4 7 10 Number of subspecies 27 69 17 30 Estimate the population total of the subspecies and the standard error of this estimate. (6)

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ANSWER a Probability proportional to size sampling is a probability sampling technique used in statistics to select a sample from a population The pro... View the full answer