Although there is a big difference in costs between two electric vehicles, model 1 and model 2, is there a difference in the range of miles for these vehicles between charges? Suppose that the results of driving tests are as follows. Standard Deviation Sample Size Car Mean model 1 231.2 12.4 40 model 2 235.3 17.3 40 (a) Calculate a point estimate for the difference in the average ranges (in miles) between charges for a model 1 car and a model 2 car. (Use umodel 1- Hmodel 2:) |-4.1 mi What is the 95% margin of error (in miles) for the point estimate you found? (Round your answer to three decimal places.) 6.596 mi (b) Find a 99% confidence interval estimate for the difference in the average ranges (in miles) between charges for these electric models. (Use umodel 1 your answers to two decimal places.) - Hmodel 2' Round mi to mi

Although there is a big difference in costs between two electric vehicles, model 1 and model 2, is there a difference in the range of miles for these vehicles between charges? Suppose that the results of driving tests are as follows. Standard Deviation Sample Size Car Mean model 1 231.2 12.4 40 model 2 235.3 17.3 40 (a) Calculate a point estimate for the difference in the average ranges (in miles) between charges for a model 1 car and a model 2 car. (Use umodel 1- Hmodel 2:) |-4.1 mi What is the 95% margin of error (in miles) for the point estimate you found? (Round your answer to three decimal places.) 6.596 mi (b) Find a 99% confidence interval estimate for the difference in the average ranges (in miles) between charges for these electric models. (Use umodel 1 your answers to two decimal places.) - Hmodel 2' Round mi to mi

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 31PPS

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