A summer intern at the Lego factory in Billund, Denmark,samples 41 yellow bricks and 35 red bricks and measures theirweight. She finds sample means of 4.1 grams (yellow bricks) and4.2 grams (red bricks), and sample standard deviations of 0.15(yellow) and 0.23 (red), respectively.Compute the 75% confidence interval for the mean weight ofred bricks.lower bound 4.156upper boundlower boundCompute the 75% confidence interval for the differencebetween the mean weights (i.e., red minus yellow). Hint:Compute the number of degrees of freedom, v, using Equation5.20 in Chapter 5.6upper bound4.244lower boundupper bound4.09986Compute the 75% confidence interval for the variance of theweight for the yellow bricks.4.200144.12305?4.17695????

Answered: Image /qna-images/answer/45fb1200-647c-4310-8aec-6ee944548aac.jpg

A summer intern at the Lego factory in Billund, Denmark, samples 41 yellow bricks and 35 red bricks and measures their weight. She finds sample means of 4.1 grams (yellow bricks) and 4.2 grams (red bricks), and sample standard deviations of 0.15 (yellow) and 0.23 (red), respectively. Compute the 75% confidence interval for the mean weight of red bricks. lower bound upper bound lower bound upper bound Compute the 75% confidence interval for the difference between the mean weights (i.e., red minus yellow). Hint: Compute the number of degrees of freedom, v, using Equation 5.20 in Chapter 5.6 4.156 lower bound 4.244 upper bound 4.09986 Compute the 75% confidence interval for the variance of the weight for the yellow bricks. 4.20014 4.12305 ? 4.17695 ? ? ? ?

A summer intern at the Lego factory in Billund, Denmark, samples 41 yellow bricks and 35 red bricks and measures their weight. She finds sample means of 4.1 grams (yellow bricks) and 4.2 grams (red bricks), and sample standard deviations of 0.15 (yellow) and 0.23 (red), respectively. Compute the 75% confidence interval for the mean weight of red bricks. lower bound upper bound lower bound upper bound Compute the 75% confidence interval for the difference between the mean weights (i.e., red minus yellow). Hint: Compute the number of degrees of freedom, v, using Equation 5.20 in Chapter 5.6 4.156 lower bound 4.244 upper bound 4.09986 Compute the 75% confidence interval for the variance of the weight for the yellow bricks. 4.20014 4.12305 ? 4.17695 ? ? ? ?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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