Sentence examples for proportion assumption from inspiring English sources

In practice, when converting a competitive-type national IO table (an IO table without a separated import matrix) into non-competitive-type IO table (an IO table with a separated import matrix), a useful but sometimes rough "same proportion assumption" is always conducted.

We examined different lags of exposure, tested the shape of the PM2.5 concentration mortality relationship, tested for changes in this slope over time, and relaxed the proportion assumption by allowing the effects of covariates to vary each year.

Given the small study sample size coupled with large proportions, assumptions of normality were not justified as the proportions were negatively skewed.

The proportion hazards assumption was tested.

After log-log survival plots were used to verify the proportion hazard assumptions for each predictor, the Cox proportional-hazards model was applied to estimate their contributions.

Subsequent to log-log survival plots that verified the proportion hazard assumptions with each predictor, the Cox multivariate proportional hazards model examined the role of prognostic factors on survival of different ethnic group.

A sample size of 1456 was calculated for the study using two population proportion formula, assumptions of the prevalence of ANC use (50%) and difference of 8% between women with intended and unintended pregnancies, and power of 80%.

Using a single population proportion formula with assumption of 50% prevalence of IPT practice in the country, 5% margin of error and adding a 5% allowance for interruption of participation, a sample of 403 study participants was calculated.

The sample size was determined using a formula for estimation of single population proportion with the assumption of 95% confidence level, margin of error of 5% and expected prevalence of modern contraceptive use Tigray region of (0.16) [ 10].

The sample size was determined using a formula for estimation of single population proportion with the assumption of 95%% confidence interval, a margin of error of 4%% and taking 25.4 % contraceptive prevalence of Butajira district,Ethiopia [ 11] and a design effect of 2. To avoid the effect of the design that decreases the representativeness of the study we used design effect.

Our crude mortality rate for MCC in 1995 2006 (0.04) is consistent with the 0.05 crude mortality rate for "endocrine carcinoma of the skin" for 1995 2002 reported by RARECARE, which, however, was not based on actual mortality data and was estimated based on incidence rates multiplied by the fatality proportion, under the assumption of constant incidence and survival rates (www.rarecare.eu).eu