1. A wood trader would like to estimate the total weight (in gram) of woods in theforest that he is going to acquire. Suppose the forest has N = 1000 trees, let z; be thediameter (in cm) of the trees and y; be the weight (in gram) of the trees in a simplerandom sample of n = 10 trees. The sum of the square of the diameters of all treesin the forest is T2 = 28,000,000. Using the information below, answer the followingquestions:iXi112.00235.00337.00440.00544.006 54.00757.00858.00966.0010 73.00Yi300.002500.002700.003200.003900.005800.006500.006700.008700.0010700.00a.) Estimate the total weights of the tree in the forest using ratio estimation and placea bound on the error of estimation.b.) Estimate the total weights of the tree in the forest using regression estimation andplace a bound on the error of estimation.c.) Do you think the regression estimates would be better than the one obtained fromthe ratio estimation? Without detailed calculation, provide a valid reason whyyour claim holds. "'

Given the data as i xi yi 1 12 300 2 35 2500 3 37 2700 4 40 3200 5 44 3900 6 54 5800…

Answered: 1. A wood trader would like to estimate…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Assuming that workers' salaries in your company are uniformly distributed between $10,000 and $50,000 per year. Find the amount of money that 35% of the workers make more than that value?
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For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a combined study of northern pike, cutthroat trout, rainbow trout, and lake trout, it was found that 34 out of 806 fish died when caught and released using barbless hooks on flies or lures. All hooks were removed from the fish. (a) Let p represent the proportion of all pike and trout that die (i.e., p is the mortality rate) when caught and released using barbless hooks. Find a point estimate for p. (Round your answer to four decimal places.)(b) Find a 99% confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit
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