Question 5 of 11 Stacked Exposure to dust at work can lead to lung disease later in life. One study measured the workplace exposure of tunnel construction workers. Part of the study compared 115 drill...

Extracted text: Question 5 of 11 Stacked Exposure to dust at work can lead to lung disease later in life. One study measured the workplace exposure of tunnel construction workers. Part of the study compared 115 drill and blast workers with 220 outdoor concrete workers. Total dust exposure was measured in milligram years per cubic meter (mg-y/m³). The mean exposure for the drill and blast workers was 18.0 mg y/m³ with a standard deviation of 7.8 mg-y/m³. For the outdoor concrete workers, the corresponding values were 6.5 and 3.4 mg-y/m', respectively. Use Table D or your preferred software to determine the P-value. Select the correct P-value. O P-value < 0.001="" o="" p-value=""> 0.005 O 0.0025 < p-value="">< 0.005="" o="" 0.001="">< p-value=""><>