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Assume that in the survey of the previous problem during one month the sample weight (kg) and sample variance were calculated as with a sample size of n = : 64. y = 61.60, s² = 436.11 a) What are the point estimates for the population's expected value μ and its variance o²? What is the point estimate of the standard deviation σ of the population? What is the standard error of estimate for the population mean? b) In addition, use this data to calculate the 95% t-confidence interval for the expected value of the weight using the equation (5.17). (The quantiles of t- distribution are conveniently obtained using R by qt function. For example t17(0.01) = qt (0.99, 17) qt (0.01, 17, lower.tail FALSE) 2.567) = = =

Assume that in the survey of the previous problem during one month the sample weight (kg) and sample variance were calculated as with a sample size of n = : 64. y = 61.60, s² = 436.11 a) What are the point estimates for the population's expected value μ and its variance o²? What is the point estimate of the standard deviation σ of the population? What is the standard error of estimate for the population mean? b) In addition, use this data to calculate the 95% t-confidence interval for the expected value of the weight using the equation (5.17). (The quantiles of t- distribution are conveniently obtained using R by qt function. For example t17(0.01) = qt (0.99, 17) qt (0.01, 17, lower.tail FALSE) 2.567) = = =

MATLAB: An Introduction with Applications
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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Assume that in the survey of the previous problem during one month the sample weight (kg) and sample variance were calculated as Y y = 61.60, = 436.11 with a sample size of n = 64. a) What are the point estimates for the population's expected value μ and its variance o²? What is the point estimate of the standard deviation σ of the population? What is the standard error of estimate for the population mean? b) In addition, use this data to calculate the 95% t-confidence interval for the expected value of the weight using the equation (5.17). (The quantiles of t- distribution are conveniently obtained using R by qt function. For example t17(0.01) = qt (0.99, 17) = qt (0.01, 17, lower.tail = FALSE) = 2.567)
Transcribed Image Text:Assume that in the survey of the previous problem during one month the sample weight (kg) and sample variance were calculated as Y y = 61.60, = 436.11 with a sample size of n = 64. a) What are the point estimates for the population's expected value μ and its variance o²? What is the point estimate of the standard deviation σ of the population? What is the standard error of estimate for the population mean? b) In addition, use this data to calculate the 95% t-confidence interval for the expected value of the weight using the equation (5.17). (The quantiles of t- distribution are conveniently obtained using R by qt function. For example t17(0.01) = qt (0.99, 17) = qt (0.01, 17, lower.tail = FALSE) = 2.567)
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