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Some assembly required A company that markets build-it-yourself furniture sells a

Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux ISBN: 9780321854018 481

Solution for problem 37 Chapter Part I

Stats Modeling the World | 4th Edition

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Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux

Stats Modeling the World | 4th Edition

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Problem 37

Some assembly required A company that markets build-it-yourself furniture sells a computer desk that is advertised with the claim less than an hour to assemble. However, through postpurchase surveys the company has learned that only 25% of its customers succeeded in building the desk in under an hour. The mean time was 1.29 hours. The company assumes that consumer assembly time follows a Normal model. a) Find the standard deviation of the assembly time model. b) One way the company could solve this problem would be to change the advertising claim. What assembly time should the company quote in order that 60% of customers succeed in finishing the desk by then? c) Wishing to maintain the less than an hour claim, the company hopes that revising the instructions and labeling the parts more clearly can improve the 1-hour success rate to 60%. If the standard deviation stays the same, what new lower mean time does the company need to achieve? d) Months later, another postpurchase survey shows that new instructions and part labeling did lower the mean assembly time, but only to 55 minutes. Nonetheless, the company did achieve the 60%-in-an-hour goal, too. How was that possible?

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Chapter 15 Inferences for Regression Chapter 4 was all descriptive statistics (describing the relationship between Y and X in the sample data) and Chapter 15 is inferential statistics (describing the ‘true’ relationship between Y and X in the population) The first few pages of Chapter 15 have two main purposes: o To introduce the population regression model o Briefly review what we did with regression in Chapter 4 The population model is     x . The text does a good job of explaining this model. Y 0 1 The population mean of Y has a linear relation with X. 0 is the population Y-intercept and  1Is the population slope Our sample regression equation statistics (ŷ, b O and b 1 will provide estimates of the p

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Chapter Part I, Problem 37 is Solved
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Textbook: Stats Modeling the World
Edition: 4
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
ISBN: 9780321854018

This full solution covers the following key subjects: . This expansive textbook survival guide covers 31 chapters, and 1357 solutions. The full step-by-step solution to problem: 37 from chapter: Part I was answered by , our top Statistics solution expert on 03/16/18, 04:57PM. The answer to “Some assembly required A company that markets build-it-yourself furniture sells a computer desk that is advertised with the claim less than an hour to assemble. However, through postpurchase surveys the company has learned that only 25% of its customers succeeded in building the desk in under an hour. The mean time was 1.29 hours. The company assumes that consumer assembly time follows a Normal model. a) Find the standard deviation of the assembly time model. b) One way the company could solve this problem would be to change the advertising claim. What assembly time should the company quote in order that 60% of customers succeed in finishing the desk by then? c) Wishing to maintain the less than an hour claim, the company hopes that revising the instructions and labeling the parts more clearly can improve the 1-hour success rate to 60%. If the standard deviation stays the same, what new lower mean time does the company need to achieve? d) Months later, another postpurchase survey shows that new instructions and part labeling did lower the mean assembly time, but only to 55 minutes. Nonetheless, the company did achieve the 60%-in-an-hour goal, too. How was that possible?” is broken down into a number of easy to follow steps, and 197 words. Since the solution to 37 from Part I chapter was answered, more than 234 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Stats Modeling the World, edition: 4. Stats Modeling the World was written by and is associated to the ISBN: 9780321854018.

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