The phrase "estimated hours" is correct and can be used in written English.
For example, you could say: "We estimated that the project would take about 20 hours to complete."
Each year, Johnson Security's general liability insurer employs a third party to conduct an audit comparing estimated hours and actual hours.
The 2008 estimated hours of informal care in Spain amounted to 852 million.
Median estimated hours of care provided in the previous month were 27.5 for spouses, 11 for adult children, and 10 for other relatives.
In bivariate analysis estimated hours of contact time with the intervention and duration of follow-up had significant influence on intervention effectiveness.
The average number of estimated hours of care was 3,346.2 annually and the monetary valuation of those hours ranged from 24,549 to 40,681 EUR per person annually (Table 2).
Based on this, we estimated a weighted activity index (i.e., the weekly total energy expenditure from these activities) by multiplying the published average metabolic equivalent (MET) scores for the reported activities [ 30] with the estimated hours per week (7 for "≥7 h", 4 for "2 6 h", 0.5 for "<1 h", and 0 for "never").
NPS 2007 data were used to estimate hours of work/week, patient visits/week and patient load/hour (Table 6).
Women estimated 32 hours versus 17 hours in the diary.
By March 2017, Roux will "reduce the maximum estimated working hours for all to 50 hours a week".
And the estimated 17 hours of talk time (or 15 hours of music) should get people through a couple of days with no charging.
I am guessing I have probably laughed and smiled for an estimated five hours every day, which means I have smiled for 85,775 hours in my lifetime.
