H0
2
: There is no statistically significant correlation between safety training expenditure and lost
time hours.
HA
2
: Have we got the remedies if there is a significant correlation between safety training
expenditure and lost time hours?
RQ
3
:
Is there a predictive relationship between frequency, angle in degrees, chord length,
velocity, and displacement and decibel level?
H0
3
: There is no statistically significant relationship between frequency, angle in degrees, chord
length, velocity, and displacement and decibel level.
HA
3
: How we can prevent the noise exposure if there is a significant relationship between
frequency, angle in degrees, chord length, velocity, and displacement and decibel level?
RQ
4
: Is the revised training program more effective than the prior training program?
H0
4
: There is no statistically significant difference in mean scores between prior training and
revised training.

UNIT II SCHOLARLY ACTIVITY
4
HA
4
: What can we utilize if there is a significant difference in mean scores between prior
training and revised training?
RQ
5
: Does working on job sites to remediate lead increase lead blood levels?

