Part One: Suppose that a device advertised to increase a car's gas mileage works. We test it at a=0.05 significance level on a small fleet of cars (with Ho: The device works), and our data results in a P-value of 0.004. What probably happens as a result of our hypothesis test? a) We fail to reject Ho, committing a Type II error b) We reject Ho, making a Type I error. c) We correctly reject Ho. d) We reject Ho, making a Type II error. e) We correctly fail to reject Ho. Part two: We have calculated a one-proportion z-confidence interval based on a sample of size n = 100. Now at the same confidence level we want to get a less precise estimate with a larger margin of error Our new sample needs to be of size: a) larger than 100 b) Smaller than 100 c) Equal to 100

Part One: Suppose that a device advertised to increase a car's gas mileage works. We test it at a=0.05 significance level on a small fleet of cars (with Ho: The device works), and our data results in a P-value of 0.004. What probably happens as a result of our hypothesis test? a) We fail to reject Ho, committing a Type II error b) We reject Ho, making a Type I error. c) We correctly reject Ho. d) We reject Ho, making a Type II error. e) We correctly fail to reject Ho. Part two: We have calculated a one-proportion z-confidence interval based on a sample of size n = 100. Now at the same confidence level we want to get a less precise estimate with a larger margin of error Our new sample needs to be of size: a) larger than 100 b) Smaller than 100 c) Equal to 100

Name: 17.Part One:Suppose that a device advertised to increase a car's gas
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Description: 17.Part One:Suppose that a device advertised to increase a car's gas mileage works. We test it at a=0.05 significancelevel on a small fleet of cars (with Ho: The device works), and our data results in a P-value of 0.004. Whatprobably happens as a re

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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