8b) A researcher aims to assess the associative impact of coffee consumption on death rates from heart diseases. For this objective the researcher collects data from 10 countries and intends to use methods of regression. The following table shows data on average per capita coffee consumption and heart disease rate in a random sample of 10 countries. d) Using the fitted model equation from the siple quadratic regression modeling in R software, estimate the expected number of deaths if the Yearly consumption is 2.9 litres. e) From simple quadratic regression fit done in R software, interpret R^2. f) State if the fitted quadratic model is adequate. Provide justifications to support your answer. Kindly show the R software commands used and type out the answer.
8b)
A researcher aims to assess the associative impact of coffee consumption on death rates from heart diseases. For this objective the researcher collects data from 10 countries and intends to use methods of regression. The following table shows data on average per capita coffee consumption and heart disease rate in a random sample of 10 countries.
d) Using the fitted model equation from the siple quadratic regression modeling in R software, estimate the expected number of deaths if the Yearly consumption is 2.9 litres.
e) From simple quadratic regression fit done in R software, interpret R^2.
f) State if the fitted quadratic model is adequate. Provide justifications to support your answer.
Kindly show the R software commands used and type out the answer.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
