Question 2) Exposure to dust at work can lead to lung disease later in life. One study measured theworkplace exposure to tunnel construction workers. Part of the study compared 120 drill and blastworkers with 215 outdoor concrete workers. Total dust exposure was measured in milligram years percubic meter (mg). The mean exposure for the drill and blast workers was 16.0 mg.y with a standarddeviation of 7.5 mg.y. For the outdoor concrete workers, the corresponding values were 5.8 mg and 3.6mg.ym²m²(a) The sample included all workers for a tunnel construction company who received medicalexaminations as part of routine health checkups. Discuss the extent to which you think these resultsapply to other similar types of workers.(b) Use a 95% confidence interval to describe the difference in the exposures, Write a sentence that givesthe interval and provides the meaning of the 95% confidence.(c) Test the null hypothesis that the exposures for these two types of workers are the same. Justify yourchoice of a one-sided or two-sided alternative. Report the test statistic, the degrees of freedom, and theP-value. Give a short summary of your conclusion.

μ1=16, s1=7.5, n1=120μ2=5.8, s2=3.6, n2=215

tion 2) Exposure tung study meas workplace exposure to tunnel construction workers. Part of the study compared 120 drill a workers with 215 outdoor concrete workers. Total dust exposure was measured in milligram ubic meter (mg.y). The mean exposure for the drill and blast workers was 16.0 mg.y with a leviation of 7.5 mg. For the outdoor concrete workers, the corresponding values were 5.8 mg.y m³ m a) The sample included all workers for a tunnel construction company who received medi xaminations as part of routine health checkups. Discuss the extent to which you think the pply to other similar types of workers.

tion 2) Exposure tung study meas workplace exposure to tunnel construction workers. Part of the study compared 120 drill a workers with 215 outdoor concrete workers. Total dust exposure was measured in milligram ubic meter (mg.y). The mean exposure for the drill and blast workers was 16.0 mg.y with a leviation of 7.5 mg. For the outdoor concrete workers, the corresponding values were 5.8 mg.y m³ m a) The sample included all workers for a tunnel construction company who received medi xaminations as part of routine health checkups. Discuss the extent to which you think the pply to other similar types of workers.

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2AGP

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