The authors of a paper compared two different instruments for measuring a person's capacity for breathing out air. (This measurement is helpful in diagnosing various lung disorders.) The two instruments considered were a Wright peak flow meter and a mini-Wright peak flow meter. Seventeen people participated in the study, and for each person air flow was measured once using the Wright meter and once using the mini-Wright meter. The Wright meter is thought to provide a better measure of air flow, but the mini-Wright meter is easier to transport and to use. Use of the mini-Wright meter could be recommended as long as there is not convincing evidence that the mean reading for the mini-Wright meter is different from the mean reading for Wright meter. For purposes of this exercise, you can assume that it is reasonable to consider the 17 people who participated in this study as representative of the population of interest. Data values from this paper are given in the accompanying table. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Mini Wright Meter 511 430 520 428 500 600 364 380 658 447 432 626 260 477 259 350 451 Wright Meter 494 395 516 434 476 557 413 442 650 433 417 656 267 478 178 423 420 Use the given data to determine if there is convincing evidence that the mean reading differs for the two instruments. (Use mini-wrightwright) Find the test statistic. (Round your answer to two decimal places.) t= Find the df. (Round your answer down to the nearest whole number.) df = [ Use technology to find the P-value. (Round your answer to four decimal places.) P-value= State your conclusion. We do not reject H. We not have convincing evidence that the mean reading differs for the two instruments. O We reject H. We not have convincing evidence that the mean reading differs for the two instruments. We do not reject H. We have convincing evidence that the mean reading differs for the two instruments. O We reject H. We have convincing evidence that the mean reading differs for the two instruments.

The authors of a paper compared two different instruments for measuring a person's capacity for breathing out air. (This measurement is helpful in diagnosing various lung disorders.) The two instruments considered were a Wright peak flow meter and a mini-Wright peak flow meter. Seventeen people participated in the study, and for each person air flow was measured once using the Wright meter and once using the mini-Wright meter. The Wright meter is thought to provide a better measure of air flow, but the mini-Wright meter is easier to transport and to use. Use of the mini-Wright meter could be recommended as long as there is not convincing evidence that the mean reading for the mini-Wright meter is different from the mean reading for Wright meter. For purposes of this exercise, you can assume that it is reasonable to consider the 17 people who participated in this study as representative of the population of interest. Data values from this paper are given in the accompanying table. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Mini Wright Meter 511 430 520 428 500 600 364 380 658 447 432 626 260 477 259 350 451 Wright Meter 494 395 516 434 476 557 413 442 650 433 417 656 267 478 178 423 420 Use the given data to determine if there is convincing evidence that the mean reading differs for the two instruments. (Use mini-wrightwright) Find the test statistic. (Round your answer to two decimal places.) t= Find the df. (Round your answer down to the nearest whole number.) df = [ Use technology to find the P-value. (Round your answer to four decimal places.) P-value= State your conclusion. We do not reject H. We not have convincing evidence that the mean reading differs for the two instruments. O We reject H. We not have convincing evidence that the mean reading differs for the two instruments. We do not reject H. We have convincing evidence that the mean reading differs for the two instruments. O We reject H. We have convincing evidence that the mean reading differs for the two instruments.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter4: Writing Linear Equations

Section: Chapter Questions

Problem 14CR

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