Groundwater is the main source of water in many countries. In a study of the quality of
Question:
Groundwater is the main source of water in many countries. In a study of the quality of ground water in Yemen, the authors of the paper “Multiple Linear Regression Model for Chloride Estimation of Groundwater in Ash-Shihr Town and Its Outskirts Hadharamout-Yemen” (International Journal of Environmental Sciences [2016]: 881–888) used a multiple regression model with two independent variables, where
y = Chloride concentration (mg/L)
x1 = Total alkalinity
x2 = Electrical conductivity
The model equation suggested in the paper is
y = 2183.560 + 1.589x1 + 0.069x2 + e
a. Based on this model, what is the mean value of y when x1 = 300 and x2 = 2500?
b. Based on this model, what mean chloride concentration is associated with a total alkalinity of 230 and an electrical conductivity of 2700?
Step by Step Answer:
a Mean value of y y 183...View the full answer
Introduction To Statistics And Data Analysis
ISBN: 9781337793612
6th Edition
Authors: Roxy Peck, Chris Olsen, Tom Short
