Provide a 95% Cl for the true slope ()? Hypertension The INTERSALT Study investigators collected standardized data

Question:

Provide a 95% Cl for the true slope (β)?

Hypertension

The INTERSALT Study investigators collected standardized data on timed 24-hour urinary excretion for 10,079 men and women from 52 population samples in 32 countries (Brown et al.) [14] One of the goals of the INTERSALT Study was to quantify the relationship between 24-hour urinary Na (y) and estimated 24-hour urinary Na (x) obtained from casual urine specimens at one point in time. The investigators presented a simple linear regression of y on x, separately for men and women. The regression equation for men was:

Y = 1.03 x − 7.19, with R² = 0.27, n = 1369