In an investigation of environmental causes of disease data

Assignment Help Basic Statistics

Reference no: EM13605192

In an investigation of environmental causes of disease, data were collected on the annual mortality rate ( deaths per 100,000) for males in 61 large towns in England. In addition, water hardness was recorded as the calcium concentration ( parts per million or ppm) in the drinking water. The following regression equation was obtained:

Mortality= 1676.36 - 3.226 ( calcium) R-squared= 42.9%

a) Identify and interpret the slope of the line.

b) Calculate the correlation coefficient and use it to interpret the relationship between water hardness and mortality rate

c) In a town with a calcium concentration of 75 parts ppm the calculated residual is 10.6

1. Calculate the predicted mortality rate for this town

2. What is the true mortality rate in this town?

Reference no: EM13605192

Questions Cloud

The fill amount of bottles of a soft drink is normally : the fill amount of bottles of a soft drink is normally distributed with a mean of 2.0 liters and a standard deviation

In lab test on a 925cm cube of a certain material a force : in lab test on a 9.25cm cube of a certain material a force of 1375 n at 8.50 degree to the cube is in the bottom of the

Calculate cost inventory invoice price of goods is 5000 : calculate cost inventory. invoice price of goods is 5000. purchase terms are 210 n30 and the invoice is paid in the

A pot of hot water is boiling on your stove the pot is in : a pot of hot water is boiling on your stove. the pot is in the shape of a round cylinder made of aluminum which is 10

In an investigation of environmental causes of disease data : in an investigation of environmental causes of disease data were collected on the annual mortality rate deaths per

A company insurance salesman sold a life insurance policy : bluestem insurance agency prepares monthly financial statements. presented below is an income statement for the month

Calculate the force and pressure acting across the pelvis : calculate the force and pressure acting across the pelvis and at the feet of a 150 lbm person. model the body using

Niagara corporation purchased a one-year insurance policy : niagara corporation purchased a one-year insurance policy in january 2010 for 66000. the insurance policy is in effect

A what torque does the machinist exert about the center of : a machinist is using a wrench to loosen a nut. the wrench is 25.0 cm long and the exerts a 17.0 n force at the end of

User Account

All Pages